blocks|key|3302564|text|IP地址为0.0.0.0，state+=+LISTENING:表示端口80正在侦听所有接口(未使用)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3302565|如何读取NETSTAT+-AN结果：|3302566|3302567|https://sites.google.com/site/xiangyangsite/home/technical-tips/linux-unix/networks-related-commands-on-linux/how-to-read-netstat--an-results|unordered-list-item|offset|length|3302568|3302569|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|0|3X|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|T|8|@]|9|@]|A|$]]|$1|E|3|F|5|G|7|U|8|@]|9|@$H|V|I|W|1|X]]|A|$]]|$1|J|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|F]]]]

the IP adress is 0.0.0.0, state = LISTENING: means that port 80 is listening to all interfaces (not used)

<h2>How to read NETSTAT -AN results:</h2>

<ul>
<li><a href="https://sites.google.com/site/xiangyangsite/home/technical-tips/linux-unix/networks-related-commands-on-linux/how-to-read-netstat--an-results" rel="noreferrer">https://sites.google.com/site/xiangyangsite/home/technical-tips/linux-unix/networks-related-commands-on-linux/how-to-read-netstat--an-results</a></li>
</ul>

blocks|key|331328|text|名为“网络部署代理服务”(MsDepSvc)的新服务也可以触发带有PID=4的“系统”，以侦听端口80。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|331329|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

A new service called "Web Deployment Agent Service" (MsDepSvc) can also trigger "System" with PID=4 to listen on port 80.

blocks|key|328855|text|有许多服务，可以监听windows上的80端口。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|328856|幸运的是，您可以检测并停止所有正在运行的简单控制台命令：|328857|NET+stop+HTTP|code-block|syntax|javascript|328858|当您启动它时，您将首先获得list：|328859|📷|atomic|offset|length|328860|​|328861|要避免将来出现此问题，请转到本地服务和disable+listed+services。|328862|N.B.+-一些服务会立即重新启动，只需运行几次'NET+stop+‘即可。|style|BOLD|328863|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/39564ec84875ef7f5a9e9c55fe107162.png|imageAlt|1|LINK|MUTABLE|url|http://technet.microsoft.com/en-us/library/dd277425.aspx^0|0|0|0|0|0|1|0|0|0|J|N|1|0|0|4|Y|1|0^^$0|@$1|2|3|4|5|6|7|1B|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1C|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|1D|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|1E|8|@]|9|@]|A|$]]|$1|K|3|L|5|M|7|1F|8|@]|9|@$N|1G|O|1H|1|1I]]|A|$]]|$1|P|3|Q|5|6|7|1J|8|@]|9|@]|A|$]]|$1|R|3|S|5|6|7|1K|8|@]|9|@$N|1L|O|1M|1|1N]]|A|$]]|$1|T|3|U|5|6|7|1O|8|@$N|1P|O|1Q|V|W]|$N|1R|O|1S|V|W]]|9|@]|A|$]]|$1|X|3|-4|5|6|7|1T|8|@]|9|@]|A|$]]]|Y|$Z|$5|10|11|12|A|$13|14|15|-4]]|16|$5|17|11|18|A|$19|1A]]]]

There are many services, which can listen port 80 on windows. 

Luckily you can detect and stop them all running simple console command:

<pre><code>NET stop HTTP
</code></pre>

When you'll start it, you will get list first:
<img src="https://i.stack.imgur.com/mZhR4.png" alt="enter image description here">

To avoid this problem in future go to Local Services and <a href="http://technet.microsoft.com/en-us/library/dd277425.aspx">disable listed services</a>.

N.B. - Some services will restart themselves immediately, just run 'NET stop HTTP' few times.

blocks|key|331297|text|此外，请尝试停止"SQL+Server+Reporting+Services+(MSSQLSERVER)"，它显然默认为80。我这样做了，80端口被释放了。PID确定了罪魁祸首是“系统”，但显然这个系统可以意味着多个东西。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|331298|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Also, try stopping "SQL Server Reporting Services (MSSQLSERVER)", that apparently defaults to 80. I did that and port 80 freed up. PID identified the culprit as "System", but apparently that System can mean multiple things.

blocks|key|3302828|text|我也有同样的问题。可以通过停止正在运行的服务下的万维网发布服务来修复它。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3302829|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I had the same problem. Could fix it by stopping the World Wide Web Publishing Service under running services.

blocks|key|3302990|text|这对我来说很有效：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3302991|click+on+>右键单击Applications.|3302992|Then+My+Computer.|unordered-list-item|3302993|
|3302994|Select+Manage.|offset|length|style|BOLD|3302995|3302996|Double，单击|3302997|，然后双击，然后单击“+Wide+Wide|ordered-list-item|3302998|+Publishing+Service".|3302999|Select+Stop.|3303000|3303001|3303002|entityMap^0|0|0|0|0|7|6|0|0|0|5|G|0|0|L|0|0|C|0|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|13|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|14|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|15|8|@]|9|@]|A|$]]|$1|I|3|J|5|F|7|16|8|@$K|17|L|18|M|N]]|9|@]|A|$]]|$1|O|3|H|5|6|7|19|8|@]|9|@]|A|$]]|$1|P|3|Q|5|F|7|1A|8|@]|9|@]|A|$]]|$1|R|3|S|5|T|7|1B|8|@$K|1C|L|1D|M|N]]|9|@]|A|$]]|$1|U|3|V|5|T|7|1E|8|@$K|1F|L|1G|M|N]]|9|@]|A|$]]|$1|W|3|X|5|T|7|1H|8|@$K|1I|L|1J|M|N]]|9|@]|A|$]]|$1|Y|3|-4|5|6|7|1K|8|@]|9|@]|A|$]]|$1|Z|3|-4|5|6|7|1L|8|@]|9|@]|A|$]]|$1|10|3|-4|5|6|7|1M|8|@]|9|@]|A|$]]]|11|$]]

This works for me:

<ol>
<li>Right click on My Computer.</li>
<li>Select Manage.</li>
<li>Double click Services and Applications.</li>
<li>Then double click Services.</li>
<li>Right click on "World Wide Web Publishing Service".</li>
<li>Select Stop.</li>
</ol>

blocks|key|328601|text|听起来IIS正在监听端口80上的HTTP请求。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|328602|尝试停止IIS，方法是进入控制面板/管理工具/Internet信息服务，右键单击默认网站，然后单击弹出菜单中的停止选项，查看端口80上的监听程序是否已清除。|328603|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

It sounds like IIS is listening to port 80 for HTTP requests. 

Try stopping IIS by going into Control Panel/Administrative Tools/Internet Information Services, right-clicking on Default Web Site, and click on the Stop option in the popup menu, and see if the listener on port 80 has cleared.

blocks|key|3303503|text|测试的工作解决方案：(WINDOWS+10)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3303504|这有很多原因，我推荐的一个原因/解决方案是：|3303505|使用管理员权限打开您的窗口命令，然后：|3303506|net+stop+http+/y|code-block|syntax|javascript|3303507|以上将同意停止http服务，然后：|3303508|sc+config+http+start=+disabled|3303509|上面将默认情况下将服务配置为禁用|3303510|如果上述解决方案不起作用，请在此处找到您的具体案例：|3303511|来源：http://www.devside.net/wamp-server/opening-up-port-80-for-apache-to-use-on-windows|offset|length|3303512|重新启动WEB服务器/XAMPP/APACHE并完成。|3303513|3303514|如果您需要重新启用默认设置，这里是命令sc+config+HTTP+start=+demand，解释的源代码在这里http://servicedefaults.com/10/http/|style|CODE|3303515|entityMap|0|LINK|mutability|MUTABLE|url|http://www.devside.net/wamp-server/opening-up-port-80-for-apache-to-use-on-windows|1|http://servicedefaults.com/10/http/^0|0|0|0|0|0|0|0|0|3|2A|0|0|0|0|J|S|1L|Z|1|0^^$0|@$1|2|3|4|5|6|7|1D|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1E|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|1F|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|1G|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|1H|8|@]|9|@]|A|$]]|$1|M|3|N|5|H|7|1I|8|@]|9|@]|A|$I|J]]|$1|O|3|P|5|6|7|1J|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1K|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1L|8|@]|9|@$U|1M|V|1N|1|1O]]|A|$]]|$1|W|3|X|5|6|7|1P|8|@]|9|@]|A|$]]|$1|Y|3|-4|5|6|7|1Q|8|@]|9|@]|A|$]]|$1|Z|3|10|5|6|7|1R|8|@$U|1S|V|1T|11|12]]|9|@$U|1U|V|1V|1|1W]]|A|$]]|$1|13|3|-4|5|6|7|1X|8|@]|9|@]|A|$]]]|14|$15|$5|16|17|18|A|$19|1A]]|1B|$5|16|17|18|A|$19|1C]]]]

WORKING SOLUTION TESTED:(WINDOWS 10)

There are many reasona for this, the one cause/solution i recommended is this:

OPEN YOUR WINDOW COMMAND WITH ADMINISTRATOR PREVILEGE THEN:

<pre><code>net stop http /y
</code></pre>

the above will agree to stop http service then:

<pre><code>sc config http start= disabled
</code></pre>

the above will configure service to disable by default

IF ABOVE SOLUTION DOES NOT WORK FIND YOUR SPECIFIC CASE HERE:

SOURCE: <a href="http://www.devside.net/wamp-server/opening-up-port-80-for-apache-to-use-on-windows" rel="noreferrer">http://www.devside.net/wamp-server/opening-up-port-80-for-apache-to-use-on-windows</a>

RESTART YOUR WEB SERVER/XAMPP/APACHE AND DONE.

<hr>

If you ever need to re-enable to default here is the command <code>sc config HTTP start= demand</code> the source of explanation is here <a href="http://servicedefaults.com/10/http/" rel="noreferrer">http://servicedefaults.com/10/http/</a>

blocks|key|3090394|text|我发现"SQL+Server+Reporting+Services+(MSSQLSERVER)“会自动启动并侦听端口80。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3090395|我希望这能帮到你。|3090396|O|3090397|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

I've found out that "SQL Server Reporting Services (MSSQLSERVER)" starts automatically and listens on port 80.

I hope this helps.

O

blocks|key|3303032|text|另一个可能占用端口80的服务是BranchCache|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|3303033|显示为"BranchCache“的services.msc|CODE|3303034|或者使用net命令停止服务，如下所示|3303035|net+stop+PeerDistSvc|code-block|syntax|javascript|3303036|更新：|3303037|PeerDistSvc是svhost.exe后面的一项服务，要查看svchost服务类型|3303038|tasklist+/svc+/fi+"imagename+eq+svchost.exe"|3303039|entityMap^0|F|B|0|H|C|0|4|3|0|0|0|3|0|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|10|8|@$9|11|A|12|B|H]]|D|@]|E|$]]|$1|I|3|J|5|6|7|13|8|@$9|14|A|15|B|H]]|D|@]|E|$]]|$1|K|3|L|5|M|7|16|8|@]|D|@]|E|$N|O]]|$1|P|3|Q|5|6|7|17|8|@$9|18|A|19|B|C]]|D|@]|E|$]]|$1|R|3|S|5|6|7|1A|8|@]|D|@]|E|$]]|$1|T|3|U|5|M|7|1B|8|@]|D|@]|E|$N|O]]|$1|V|3|-4|5|6|7|1C|8|@]|D|@]|E|$]]]|W|$]]

An other service that could occupied the port 80 is BranchCache
<code>services.msc</code> showing it as &quot;BranchCache&quot;
or use the <code>net</code> command to stop the service like
<pre><code>net stop PeerDistSvc
</code></pre>
Update:
PeerDistSvc is a service behind svhost.exe, to view svchost services type
<pre><code>tasklist /svc /fi &quot;imagename eq svchost.exe&quot;
</code></pre>

blocks|key|3303663|text|通过执行以下五个步骤，可以非常容易地解决此问题：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3303664|单击万维网发布Services|offset|length|style|BOLD|3303665|Right+Service|ordered-list-item|3303666|Click+STOP|3303667|打开万维网|3303668|要防止以后出现此问题：|3303669|转到Properties|3303670|Change启动类型为Manual|unordered-list-item|3303671|
的|3303672|3303673|3303674|维奥拉，你准备好了！|3303675|有关根本原因的更多信息，请访问https://serverfault.com/questions/65717/port-80-is-being-used-by-system-pid-4-what-is-that|3303676|entityMap|0|LINK|mutability|MUTABLE|url|https://serverfault.com/questions/65717/port-80-is-being-used-by-system-pid-4-what-is-that^0|0|7|8|0|0|6|4|0|2|3|0|0|B|0|0|C|0|0|H|0|1|1|0|0|0|0|A|0|0|2X|F|2I|0|0^^$0|@$1|2|3|4|5|6|7|1B|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1C|8|@$D|1D|E|1E|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|1F|8|@]|9|@]|A|$]]|$1|K|3|L|5|J|7|1G|8|@$D|1H|E|1I|F|G]]|9|@]|A|$]]|$1|M|3|N|5|6|7|1J|8|@$D|1K|E|1L|F|G]]|9|@]|A|$]]|$1|O|3|P|5|6|7|1M|8|@$D|1N|E|1O|F|G]]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1P|8|@$D|1Q|E|1R|F|G]]|9|@]|A|$]]|$1|S|3|T|5|U|7|1S|8|@$D|1T|E|1U|F|G]]|9|@]|A|$]]|$1|V|3|W|5|6|7|1V|8|@$D|1W|E|1X|F|G]]|9|@]|A|$]]|$1|X|3|-4|5|J|7|1Y|8|@]|9|@]|A|$]]|$1|Y|3|-4|5|6|7|1Z|8|@]|9|@]|A|$]]|$1|Z|3|10|5|6|7|20|8|@$D|21|E|22|F|G]]|9|@]|A|$]]|$1|11|3|12|5|6|7|23|8|@$D|24|E|25|F|G]]|9|@$D|26|E|27|1|28]]|A|$]]|$1|13|3|-4|5|6|7|29|8|@]|9|@]|A|$]]]|14|$15|$5|16|17|18|A|$19|1A]]]]

This can be very easily fixed by following these five steps:
<ol>
<li>Open Services</li>
<li>Right click on World Wide Web Publishing Service</li>
<li>Click STOP</li>
</ol>
To prevent this issue in future :
<ol start="4">
<li>Go to Properties</li>
<li>Change Startup type to Manual</li>
</ol>
Viola u are good to go !
For more info on root cause: <a href="https://serverfault.com/questions/65717/port-80-is-being-used-by-system-pid-4-what-is-that">https://serverfault.com/questions/65717/port-80-is-being-used-by-system-pid-4-what-is-that</a>

blocks|key|329054|text|问题是如何释放它，只需使用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|329055|net+stop+http|code-block|syntax|javascript|329056|https://stackoverflow.com/a/16243333/777982|offset|length|329057|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|17|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|S|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|T|8|@]|9|@$I|U|J|V|1|W]]|A|$]]|$1|K|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|H]]]]

The issue is how to free it up, simply use

<pre><code>net stop http
</code></pre>

<a href="https://stackoverflow.com/a/16243333/777982">https://stackoverflow.com/a/16243333/777982</a>

blocks|key|328760|text|我知道这些答案是正确的，但我的services.msc没有显示服务，但这确实起到了作用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|328761|sc+stop+"MsDepSvc"+
sc+config+"MsDepSvc"+start=+disabled+|code-block|syntax|javascript|328762|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I knew these answers were right , but my services.msc was not showing the services, however this did the trick:

<pre><code>sc stop "MsDepSvc" 
sc config "MsDepSvc" start= disabled 
</code></pre>

blocks|key|328800|text|我今天才遇到这个问题，因为它是在Norton请求重启后出现的，我责怪Norton。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|328801|但这不是诺顿，我删除了诺顿，重启了->问题仍然存在。|328802|netstat+-nao显示PID+4拥有我的80端口连接。|328803|然后我转到控制面板，然后“打开或关闭Windows功能”，然后取消选中Internet信息服务。|328804|重新启动后，问题就消失了。|328805|我的xampp服务器现在运行正常。|328806|我不记得一开始就打开了IIS。在这发生之前我已经跑了好几个月了。我仍然不知道最初是什么原因造成的。可能是以前的windows更新启用了iis，而我的重启打开了它，我不知道。|328807|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|S|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|T|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|U|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|V|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|O|$]]

I just got this problem today, since it showed up after Norton requested reboot I blamed Norton. 
But it wasn't Norton, I removed Norton, rebooted -> problem still there.

netstat -nao was showing that PID 4 owned my port 80 connection. 

I then went to control panel,
then "Turn Windows features on or off" 
then unchecked Internet Information Services. 
Rebooted, the problem went away. 
My xampp server is running ok now.

I don't ever remembering turning IIS on in the first place. 
I had been running many months before this happened.
I still don't know what caused it in the first place.
Maybe a previous windows updated enabled iis and my reboot turned it on, I don't know.

blocks|key|3090795|text|这个过程对我来说很有效：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3090796|XAMPP管理右键单击My+Computer.|3090797|Select+Manage。XAMPP双击服务，然后双击Services.|unordered-list-item|3090798|
|3090799|Right单击“Web+Service".|3090800|3090801|Select+Stop|3090802|ordered-list-item|3090803|3090804|Restart|3090805|3090806|3090807|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Y|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|Z|8|@]|9|@]|A|$]]|$1|I|3|J|5|F|7|10|8|@]|9|@]|A|$]]|$1|K|3|H|5|6|7|11|8|@]|9|@]|A|$]]|$1|L|3|M|5|F|7|12|8|@]|9|@]|A|$]]|$1|N|3|-4|5|O|7|13|8|@]|9|@]|A|$]]|$1|P|3|-4|5|O|7|14|8|@]|9|@]|A|$]]|$1|Q|3|R|5|O|7|15|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|16|8|@]|9|@]|A|$]]|$1|T|3|-4|5|6|7|17|8|@]|9|@]|A|$]]|$1|U|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|V|$]]

This Process works for me:

<ol>
<li>Right click on My Computer.</li>
<li>Select Manage.</li>
<li>Double click Services and Applications.</li>
<li>Then double-click Services.</li>
<li>Right click on "World Wide Web Publishing Service".</li>
<li>Select Stop</li>
<li>Restart XAMPP</li>
</ol>

blocks|key|3303784|text|在windows的最新版本中，这项服务被称为“万维网发布服务”(W3SVC)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3303785|C:\Windows\system32\svchost.exe+-k+iissvcs|code-block|syntax|javascript|3303786|您可以通过转到服务(services.msc)并停止此服务，然后将“启动类型”->设置为禁用，以阻止它在windows启动时运行，从而停止此服务。|3303787|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

On the lastest version of windows this service is called as &quot;World Wide Web Publishing Service&quot; (W3SVC)
<pre><code>C:\Windows\system32\svchost.exe -k iissvcs
</code></pre>
You can stop this service by going to Services (services.msc) and stopping the service and then setting the &quot;Startup type&quot; -&gt; Disabled for preventing it from running on windows startup.

blocks|key|3089811|text|我也遇到过同样的问题，只不过我从来没有使用过IIS。在修复另一个系统错误时，我将apache服务设置为手动启动，希望能降低系统的复杂性。在我修复了另一个bug之后，apache就不能启动了。我尝试了一段时间，但只需将apache重新设置为自动启动:开始>管理工具>服务。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3089812|显然，当Apache以这种方式启动时，它会在系统进程之前声明端口80。|3089813|某个人。我所有的谷歌搜索结果都是“不能让IIS和Apache在同一台机器上”。这是为我们中另外百分之一的人准备的。|3089814|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

I had this same exact problem, except that i have never used IIS. While I was fixing another system bug, I had set the apache service to manual start, hoping to reduce the complexity of my system. After I fixed the other bug, apache wouldn't start. I futzed for a while, but all it took was setting apache back to automatic start: Start > Administrative Tools > Services.

Apparently when Apache starts this way, it claims port 80 before the SYSTEM process can.

hth someone. all my googling turned up the 'can't have IIS and Apache on the same machine.' this is for the other one percent of us.

blocks|key|329225|text|netsh+http+show+urlacl|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|329226|在前面的评论中提到了该命令，但我想将其作为答案。它将为您获取系统中所有保留的URL。如果您查看URL中包含"80“的所有记录，您将得到答案。|329227|例如，在我的例子中，我得到：|329228|Reserved+URL:+http://%2B:80/Temporary_Listen_Addresses/
++++++++User:+\Everyone
++++++++++++Listen:+Yes
++++++++++++Delegate:+No
++++++++++++SDDL:+D:(A;;GX;;;WD)

Reserved+URL:+http://%2B:80/0131501b-d67f-491b-9a40-c4bf27bcb4d4/
++++++++User:+NT+AUTHORITY\NETWORK+SERVICE
++++++++++++Listen:+Yes
++++++++++++Delegate:+No
++++++++++++SDDL:+D:(A;;GX;;;NS)|code-block|syntax|javascript|329229|在谷歌上快速搜索后，我了解到"NT+AUTHORITY\NETWORK+SERVICE“属于SQL+Server。因此，我转到服务并停止SQL+Server报告服务，当我检查netstat+-a+-b时，端口80再次空闲|329230|entityMap^0|0|M|0|0|0|0|2F|D|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|V|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|W|8|@]|D|@]|E|$]]|$1|J|3|K|5|L|7|X|8|@]|D|@]|E|$M|N]]|$1|O|3|P|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|R|$]]

<code>netsh http show urlacl</code>
The command is mentioned in a previous comment but I'd like to bring it up as an answer. It will get you all reserved URLs in the system. If you look through all records with &quot;80&quot; in URL, you shall have your answer.
For example, in my case, I got:
<pre><code>Reserved URL: http://+:80/Temporary_Listen_Addresses/
 User: \Everyone
 Listen: Yes
 Delegate: No
 SDDL: D:(A;;GX;;;WD)

Reserved URL: http://+:80/0131501b-d67f-491b-9a40-c4bf27bcb4d4/
 User: NT AUTHORITY\NETWORK SERVICE
 Listen: Yes
 Delegate: No
 SDDL: D:(A;;GX;;;NS)
</code></pre>
After a quick Google search, I learnt that &quot;NT AUTHORITY\NETWORK SERVICE&quot; belongs to SQL Server. So I went to Services and stopped SQL Server Reporting Service, port 80 is free again as I check <code>netstat -a -b</code>

blocks|key|333490|text|尝试netstat+-b，这可能会对这种情况有所了解(显示.exe正在使用该端口)。祝好运。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|333491|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Try netstat -b, that may hopefully shed some light on the situation (showing what .exe is using the port). Good luck.

blocks|key|3090034|text|对我来说，它是在停止Web部署代理服务之后工作的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3090035|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

For me it worked after stopping Web Deployment Agent Service.

blocks|key|330532|text|如果您使用Razer产品并在PC上安装Razer+Synapse软件，它也会阻止端口80。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|330533|它没有包含在netstat命令中，所以我无法对其进行故障排除。由于软件中包含了许多服务，因此我无法分析哪个服务阻塞了端口。卸载Razer+Synapse后，我可以在Windows+10上重新启动Apache服务器。|offset|length|style|CODE|330534|entityMap^0|0|6|7|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

In case you use Razer product and install Razer Synapse software on your PC, it blocks the port 80 too. 

It is not included in the <code>netstat</code> command so I am not able to troubleshoot it. Since there are many services included within the software, I can't analyze which one that blocks the port. After uninstalling the Razer Synapse, I can start the Apache server again on Windows 10.

blocks|key|3303718|text|以编程方式标识流程|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3303719|到目前为止，所有的答案都要求用户做一些交互的事情。这就是当netstat显示PID+4时，您如何找到PID，而不需要打开某个GUI或处理有关相关服务的对话框。|3303720|$Uri+=+"http://127.0.0.1:8989"++++#+for+example


#+Shows+processes+that+have+registered+URLs+with+HTTP.sys
$QueueText+=+netsh+http+show+servicestate+view=requestq+verbose=yes+%7C+Out-String

#+Break+into+text+chunks;+discard+the+header
$Queues++++=+$QueueText+-split+'(?<=\n)(?=Request+queue+name)'+%7C+Select-Object+-Skip+1

#+Find+the+chunk+for+the+request+queue+listening+on+your+URI
$Queue+++++=+@($Queues)+-match+[regex]::Escape($Uri+-replace+'/$')


if+($Queue.Count+-eq+1)
{
++++#+Will+be+null+if+could+not+pick+out+exactly+one+PID
++++$ProcessId+=+[string]$Queue+-replace+'(?s).*Process+IDs:\s%2B'+-replace+'(?s)\s.*'+-as+[int]

++++if+($ProcessId)
++++{
++++++++Write-Verbose+"Identified+process+$ProcessId+as+the+HTTP+listener.+Killing..."
++++++++Stop-Process+-Id+$ProcessId+-Confirm
++++}
}|code-block|syntax|javascript|3303721|这真的让我很难受。我讨厌HttpListener，我希望我只用了Pode。|3303722|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<h2>Identify the process programmatically</h2>
All the answers to date have required the user to do something interactive. This is how you find the PID when netstat shows you PID 4, without needing to open some GUI or handle a dialogue about depending services.
<pre><code>$Uri = &quot;http://127.0.0.1:8989&quot; # for example


# Shows processes that have registered URLs with HTTP.sys
$QueueText = netsh http show servicestate view=requestq verbose=yes | Out-String

# Break into text chunks; discard the header
$Queues = $QueueText -split '(?&lt;=\n)(?=Request queue name)' | Select-Object -Skip 1

# Find the chunk for the request queue listening on your URI
$Queue = @($Queues) -match [regex]::Escape($Uri -replace '/$')


if ($Queue.Count -eq 1)
{
 # Will be null if could not pick out exactly one PID
 $ProcessId = [string]$Queue -replace '(?s).*Process IDs:\s+' -replace '(?s)\s.*' -as [int]

 if ($ProcessId)
 {
 Write-Verbose &quot;Identified process $ProcessId as the HTTP listener. Killing...&quot;
 Stop-Process -Id $ProcessId -Confirm
 }
}
</code></pre>
That really busted my chops. I hate HttpListener and wish I'd just used Pode.

blocks|key|328614|text|这不能解释PID方面的事情，但如果你运行Skype，它出于某种原因喜欢使用80端口。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|328615|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

This wouldn't explain the PID side of things, but if you run Skype, it likes to use Port 80 for some reason.

blocks|key|3090004|text|在我的例子中，它发生在安装Microsoft+Web+Matrix之后。卸载此回收站和"Microsoft+Web+Deploy“解决了此问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3090005|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

In my case, it happened after installing Microsoft Web Matrix. Uninstalling this trash along with "Microsoft Web Deploy" fixed the issue.

blocks|key|3303052|text|这些对我来说都不管用。我不得不去找a+SuperUser+question。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3303053|3303054|如果是系统进程-PID+4-您需要禁用HTTP.sys驱动程序，该驱动程序是由另一个服务按需启动的，例如Windows7或2008上的Windows+Remote+Management或Print+Spooler。|blockquote|3303055|3303056|有两种方法可以禁用它，但第一种方法更安全：|3303057|3303058|进入设备管理器，从菜单/视图中选择“show+hidden”，进入“Non-Plug-+|3303059|​|ordered-list-item|3303060|Go+Play+Driver”/HTTP，双击将其禁用(或将其设置为manual，某些服务依赖于它).|unordered-list-item|3303061|重启并使用netstat+-nao+%7C+find+":80"检查80是否仍在使用|style|CODE|3303062|3303063|3303064|3303065|这就是为我工作的那个！|3303066|entityMap|0|LINK|mutability|MUTABLE|url|https://superuser.com/questions/352017/pid4-using-port-80^0|H|K|0|0|0|0|0|0|0|0|1|1|5|P|1|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1A|8|@]|9|@$A|1B|B|1C|1|1D]]|C|$]]|$1|D|3|-4|5|6|7|1E|8|@]|9|@]|C|$]]|$1|E|3|F|5|G|7|1F|8|@]|9|@]|C|$]]|$1|H|3|-4|5|6|7|1G|8|@]|9|@]|C|$]]|$1|I|3|J|5|6|7|1H|8|@]|9|@]|C|$]]|$1|K|3|-4|5|6|7|1I|8|@]|9|@]|C|$]]|$1|L|3|M|5|6|7|1J|8|@]|9|@]|C|$]]|$1|N|3|O|5|P|7|1K|8|@]|9|@]|C|$]]|$1|Q|3|R|5|S|7|1L|8|@]|9|@]|C|$]]|$1|T|3|U|5|S|7|1M|8|@$A|1N|B|1O|V|W]]|9|@]|C|$]]|$1|X|3|-4|5|6|7|1P|8|@]|9|@]|C|$]]|$1|Y|3|-4|5|6|7|1Q|8|@]|9|@]|C|$]]|$1|Z|3|O|5|6|7|1R|8|@]|9|@]|C|$]]|$1|10|3|11|5|6|7|1S|8|@]|9|@]|C|$]]|$1|12|3|-4|5|6|7|1T|8|@]|9|@]|C|$]]]|13|$14|$5|15|16|17|C|$18|19]]]]

None of these worked for me. I had to go to <a href="https://superuser.com/questions/352017/pid4-using-port-80">a SuperUser question</a>. 

<blockquote>
 If it is a System Process—PID 4—you need to disable the HTTP.sys driver which is started on demand by another service, such as Windows Remote Management or Print Spooler on Windows 7 or 2008.
 
 There is two ways to disable it but the first one is safer:
 
 <ol>
 <li><ul>
 <li>Go to device manager, select “show hidden devices” from menu/view, go to “Non-Plug and Play Driver”/HTTP, double click it to disable it (or set it to manual, some services depended on it).</li>
 <li>Reboot and use <code>netstat -nao | find ":80"</code> to check if 80 is still used.</li>
 </ul></li>
 </ol>
</blockquote>

This is the one that worked for me!

blocks|key|3303157|text|我四处寻找PID+4，然后来到了这个问题。根据this+answer和一个blog+post，我认为任何与PID+4有关的操作都可能是Windows+Service，所以您可能需要在services.msc中查找相关服务。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3303158|此外，这个进程是由系统运行的，它被认为是另一个“登录”用户。|3303159|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/5735736/1091386|1|http://morgansimonsen.wordpress.com/2009/12/10/winrm-and-tcp-ports/^0|2J|C|N|B|0|11|9|1|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]]|D|@$9|U|A|V|1|W]|$9|X|A|Y|1|Z]]|E|$]]|$1|F|3|G|5|6|7|10|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]|P|$5|K|L|M|E|$N|Q]]]]

I was looking around for PID 4 and came to this question. From <a href="https://stackoverflow.com/a/5735736/1091386">this answer</a> and a <a href="http://morgansimonsen.wordpress.com/2009/12/10/winrm-and-tcp-ports/" rel="nofollow noreferrer">blog post</a> I figured that anything to do with PID 4 is probably a Windows Service, so you may want to look for the relevant services in <code>services.msc</code>.

Also, this process is run by System, which is considered another "logged-on" user.

blocks|key|329011|text|我也有同样的问题，这是因为IIS在服务器上运行，如果是这样的话，你可以使用IIS管理器来停止它。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|329012|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I had the same problem and it was because of IIS running on the server, you can stop it using IIS Manager if it is the case for you.

blocks|key|3303383|text|如果你运行的是Windows+Server2012+R2，那么一定要去掉工作文件夹：http://blogs.technet.com/b/filecab/archive/2013/10/15/windows-server-2012-r2-resolving-port-conflict-with-iis-websites-and-work-folders.aspx移除工作文件夹功能下的文件服务器为我工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3303384|entityMap|0|LINK|mutability|MUTABLE|url|http://blogs.technet.com/b/filecab/archive/2013/10/15/windows-server-2012-r2-resolving-port-conflict-with-iis-websites-and-work-folders.aspx^0|16|3W|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

If you are running Windows Server 2012 R2 then make sure to get rid of Work Folders: <a href="http://blogs.technet.com/b/filecab/archive/2013/10/15/windows-server-2012-r2-resolving-port-conflict-with-iis-websites-and-work-folders.aspx" rel="nofollow">http://blogs.technet.com/b/filecab/archive/2013/10/15/windows-server-2012-r2-resolving-port-conflict-with-iis-websites-and-work-folders.aspx</a> 
Removing Work Folders feature under File Server worked for me.

blocks|key|3303637|text|我停止了万维网发布服务，然后它就开始工作了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3303638|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I stopped World Wide Web Publishing Service and then it worked.

blocks|key|334126|text|BranchCache是我的问题。我的解决方案是以管理员身份运行Powershell，并运行：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|334127|Disable-BC+-Force|code-block|syntax|javascript|334128|参考：https://docs.microsoft.com/en-us/powershell/module/branchcache/disable-bc?view=win10-ps|offset|length|334129|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.microsoft.com/en-us/powershell/module/branchcache/disable-bc?view=win10-ps^0|0|0|3|2F|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

BranchCache was my problem. My resolution was to run Powershell as an administrator and run:

<pre><code>Disable-BC -Force
</code></pre>

Reference: <a href="https://docs.microsoft.com/en-us/powershell/module/branchcache/disable-bc?view=win10-ps" rel="nofollow noreferrer">https://docs.microsoft.com/en-us/powershell/module/branchcache/disable-bc?view=win10-ps</a>

blocks|key|3090212|text|对我来说，我必须在我的虚拟机上卸载"Citrix+Virtual+Desktop+Agent“|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3090213|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

For me I had to uninstall "Citrix Virtual Desktop Agent" on my VM

blocks|key|330319|text|即使在“显示所有用户的进程”上打上复选标记，PID=4也不会出现在任务管理器中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|330320|但是，netstat+-b显示指向同一PID=4的多个连接，这在此计算机上显示如下。|330321|​|330322|📷|atomic|offset|length|330323|330324|我只选择了与TCP协议有关的那些。|330325|这是在对IIS进行故障排除时获得的，而IIS在尝试了许多其他IIS之后没有启动。我不认为你应该停止这个过程。|330326|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/53b1023689cbe3a79ac909515c959791.png|imageAlt^0|0|0|0|0|1|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Z|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|11|8|@]|9|@$I|12|J|13|1|14]]|A|$]]|$1|K|3|E|5|6|7|15|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|16|8|@]|9|@]|A|$]]|$1|N|3|O|5|6|7|17|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|Q|$R|$5|S|T|U|A|$V|W|X|-4]]]]

PID=4 does not show up in Task Manager even after placing check mark on 'Show processes from all users". Well there is only one user.

However, netstat -b shows multiple connections poiting to the same PID=4 which on this computer displayed the following.

<img src="https://i.stack.imgur.com/rv0Ch.png" alt="enter image description here">

I have only chosen those pertaining to TCP protocol.

This was acquired while trouble shooting IIS which did not start after trying out many others. I do not think you should stop this process.

blocks|key|3303474|text|netstat+-a+-n+-b+-o+%7Cmore类型|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3303475|如果停止World+Wide+Web+Publishing+Service有帮助|3303476|然后在IIS+manager中查看每个站点的bindings设置，方法是选择一个站点并在侧面板上单击binding。如果需要，则将端口80更改为其他端口。|BOLD|3303477|entityMap^0|0|P|0|4|X|0|3|B|M|8|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|P|8|@$9|Q|A|R|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|S|8|@$9|T|A|U|B|J]|$9|V|A|W|B|J]]|D|@]|E|$]]|$1|K|3|-4|5|6|7|X|8|@]|D|@]|E|$]]]|L|$]]

type <code>netstat -a -n -b -o |more</code>

if stopping <code>World Wide Web Publishing Service</code> helps

then in IIS manager review each site's bindings settings, by selecting a site and on the side panel click on binding. then change port 80 to something else if required.

blocks|key|3303626|text|我刚转到服务台并停止了web部署代理。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3303627|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I just went to service and stopped web deployment agent

blocks|key|330647|text|此外，“开发人员门户”(在Windows+10上)会导致系统侦听TCP端口。通常是端口50080和50443。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|330648|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Also, the "developer portal" (on Windows 10) causes System to listen on a TCP port. Usually ports 50080 and 50443.

blocks|key|331911|text|在阅读了问题的每一个答案并尝试了所有方法之后，我卸载并重新安装了XAMPP，它起作用了。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|331912|entityMap^0|O|D|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

After reading every answer on the question and trying everything, to no avail, I uninstalled and reinstalled XAMPP, which worked.

blocks|key|329236|text|WINDOWS+11|type|unstyled|depth|inlineStyleRanges|entityRanges|data|329237|对我来说，是万维网发布服务让系统使用80端口。|329238|希望这对新的Win11用户有所帮助。|329239|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

WINDOWS 11
For me it was the World Wide Web Publishing Service who made System use port 80.
Hope this helps new Win11 users.

I am trying to use port 80 for my application server, but when I perform <code>netstat -aon</code> I get:
<blockquote>
<code>TCP 0.0.0.0:80 0.0.0.0:0 LISTENING 4</code>
</blockquote>
When I look up the process in task manager, it shows <code>PID 4</code> is <code>SYSTEM</code>, that's it. No extension... nothing. Just &quot;<code>SYSTEM</code>&quot;. What's going on here?
I'm afraid to end this process, what do I do?

Port 80 is being used by SYSTEM (PID 4), what is that?

Windows Server

SQL Server

服务器

虚拟机

Windows

我正在尝试将端口80用于我的应用程序服务器，但是当我执行netstat -aon时，我得到： TCP 0.0.0.0:80 0.0.0.0:0 LISTENING 4当我在任务管理器中查找进程时，它显示PID 4是SYSTEM，仅此而已。无延期..。没什么。只是"SYSTEM“而已。这里发生了什么事？我害怕结束这个过程，我该怎么办？

问端口80正在被系统使用(PID 4)，那是什么？
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问端口80正在被系统使用(PID 4)，那是什么？EN

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问端口80正在被系统使用(PID 4)，那是什么？
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