blocks|key|2769509|text|Windows+10用户:修复只在控制面板中，而不是在添加删除程序应用程序中。我通常运行appwiz.cpl来启动旧的控制面板小程序，并从那里运行修复。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2769510|Windows+7和8.1:转到“添加/删除程序”并在IIS+Express上选择“修复”选项后，证书已重新安装，我现在可以使用HTTPS启动IIS+Express站点。|2769511|​|2769512|📷|atomic|offset|length|2769513|2769514|证书又回来了：|2769515|2769516|2769517|2769518|现在，我可以使用HTTPS启动IIS+Express站点：|2769519|2769520|2769521|2769522|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/f7c5ab9af0ecb466897fa8114e9648e4.png|imageAlt|1|https://ask.qcloudimg.com/http-save/yehe-900000/91abfc0089eb1cf5c1d642f32516ea94.png|2|https://ask.qcloudimg.com/http-save/yehe-900000/7425bba04b306b9e13c1a072b51bb7ae.png^0|0|0|0|0|1|0|0|0|0|0|0|1|1|0|0|0|0|0|1|2|0|0^^$0|@$1|2|3|4|5|6|7|18|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|19|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|1A|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|1B|8|@]|9|@$I|1C|J|1D|1|1E]]|A|$]]|$1|K|3|E|5|6|7|1F|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|1G|8|@]|9|@]|A|$]]|$1|N|3|E|5|6|7|1H|8|@]|9|@]|A|$]]|$1|O|3|G|5|H|7|1I|8|@]|9|@$I|1J|J|1K|1|1L]]|A|$]]|$1|P|3|E|5|6|7|1M|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1N|8|@]|9|@]|A|$]]|$1|S|3|E|5|6|7|1O|8|@]|9|@]|A|$]]|$1|T|3|G|5|H|7|1P|8|@]|9|@$I|1Q|J|1R|1|1S]]|A|$]]|$1|U|3|E|5|6|7|1T|8|@]|9|@]|A|$]]|$1|V|3|-4|5|6|7|1U|8|@]|9|@]|A|$]]]|W|$X|$5|Y|Z|10|A|$11|12|13|-4]]|14|$5|Y|Z|10|A|$11|15|13|-4]]|16|$5|Y|Z|10|A|$11|17|13|-4]]]]

Windows 10 users: Repair is only in the Control Panel, not in the Add Remove programs app. I typically run appwiz.cpl to launch the old control panel applet and run repair from there.
Windows 7 and 8.1:
After going to Add/Remove Programs and choosing the &quot;Repair&quot; option on IIS Express, the certificate has been reinstalled and I can now launch IIS Express sites using HTTPS.
<img src="https://i.stack.imgur.com/7i395.png" alt="Repair IIS Express" />
The certificate is back:
<img src="https://i.stack.imgur.com/0C1ke.png" alt="IIS Express Development Certificate" />
And I can now launch the IIS Express site using HTTPS:
<img src="https://i.stack.imgur.com/CbZpG.png" alt="Success!" />

blocks|key|2769547|text|有时，此错误是由于为本地主机安装的不同的证书造成的。如果是这种情况，则不需要还原IIS+Express证书。相反，您可以执行以下操作来告诉IIS+Express使用现有证书：|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2769548|如您的本地主机证书所述，打开证书|2769549|管理单元，例如在Personal...Certicates下，获取其指纹：|ordered-list-item|2769550|打开本地主机证书的属性对话框，找到指纹并将指纹值放入记事本(或其他任何内容)，然后删除记事本(+beginning|2769551|2769552|+)中的空格和任何特殊字符|2769553|​|2769554|2769555|找到您的IIS+Express项目的端口值：|2769556|转到Visual+Studio中的项目属性并找到"SSL“值，例如"https://localhost:44300/MyApp”。本例中的|2769557|是端口号44300。如果您设置不同，请在后面的commands.|2769558|2769559|中更改该值|2769560|2769561|在管理命令提示符(非Powershell):+)中使用以下命令|2769562|2769563|2769564|netsh+http+delete+sslcert+ipport=0.0.0.0:44300|CODE|2769565|netsh+http+add+sslcert+ipport=0.0.0.0:44300+certhash=your_cert_hash_with_no_spaces+appid=+{123a1111-2222-3333-4444-bbbbcccdddee}|2769566|上面命令中的Guid可以替换为您生成的Guid。它与任何现有的IIS+Express值都不对应。|2769567|有关更多参考信息，请参阅Handling+URL+Binding+Failures+in+IIS+Express。|2769568|entityMap|0|LINK|mutability|MUTABLE|url|https://localhost:44300/MyApp|1|http://www.iis.net/learn/extensions/using-iis-express/handling-url-binding-failures-in-iis-express^0|H|3|0|0|1|1|0|0|0|0|1|Y|T|0|1|1|0|0|0|0|0|0|0|1A|0|0|3K|0|0|C|18|1|0^^$0|@$1|2|3|4|5|6|7|1P|8|@$9|1Q|A|1R|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1S|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|1T|8|@]|D|@]|E|$]]|$1|K|3|L|5|J|7|1U|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|1V|8|@]|D|@]|E|$]]|$1|N|3|O|5|6|7|1W|8|@]|D|@]|E|$]]|$1|P|3|Q|5|6|7|1X|8|@]|D|@]|E|$]]|$1|R|3|-4|5|6|7|1Y|8|@]|D|@]|E|$]]|$1|S|3|T|5|J|7|1Z|8|@]|D|@]|E|$]]|$1|U|3|V|5|J|7|20|8|@]|D|@$9|21|A|22|1|23]]|E|$]]|$1|W|3|X|5|J|7|24|8|@]|D|@]|E|$]]|$1|Y|3|-4|5|6|7|25|8|@]|D|@]|E|$]]|$1|Z|3|10|5|6|7|26|8|@]|D|@]|E|$]]|$1|11|3|Q|5|6|7|27|8|@]|D|@]|E|$]]|$1|12|3|13|5|6|7|28|8|@]|D|@]|E|$]]|$1|14|3|-4|5|J|7|29|8|@]|D|@]|E|$]]|$1|15|3|-4|5|6|7|2A|8|@]|D|@]|E|$]]|$1|16|3|17|5|6|7|2B|8|@$9|2C|A|2D|B|18]]|D|@]|E|$]]|$1|19|3|1A|5|6|7|2E|8|@$9|2F|A|2G|B|18]]|D|@]|E|$]]|$1|1B|3|1C|5|6|7|2H|8|@]|D|@]|E|$]]|$1|1D|3|1E|5|6|7|2I|8|@]|D|@$9|2J|A|2K|1|2L]]|E|$]]|$1|1F|3|-4|5|6|7|2M|8|@]|D|@]|E|$]]]|1G|$1H|$5|1I|1J|1K|E|$1L|1M]]|1N|$5|1I|1J|1K|E|$1L|1O]]]]

Sometimes this error is because of a different certificate installed for localhost. If that is the case, there is no need to restore the IIS Express certificate. Instead, you can do the following to tell IIS Express to use your existing certificate:

<ol>
<li>Open the Certificates MMC snap-in as described <a href="https://msdn.microsoft.com/en-us/library/ms788967%28v=vs.110%29.aspx" rel="noreferrer">here</a></li>
<li>Find your localhost certificate e.g. under Personal...Certicates and get its thumbprint:

<ol>
<li>Bring up the properties dialog for the localhost certificate and find the Thumbprint property</li>
<li>Paste the thumbprint value into Notepad (or whatever) and remove the spaces and any special characters at the beginning</li>
</ol></li>
<li>Find the port value of your IIS Express project:

<ol>
<li>Go to the project properties in Visual Studio and finding the "SSL URL" value, e.g. "<a href="https://localhost:44300/MyApp" rel="noreferrer">https://localhost:44300/MyApp</a>". </li>
<li>In this example 44300 is the port number. If yours is different, change that value in the later commands.</li>
</ol></li>
<li>Use the following commands in an administrative command prompt (not Powershell):</li>
</ol>

<code>netsh http delete sslcert ipport=0.0.0.0:44300</code>

<code>netsh http add sslcert ipport=0.0.0.0:44300 certhash=your_cert_hash_with_no_spaces appid=
{123a1111-2222-3333-4444-bbbbcccdddee}</code>

The Guid in the above command can be replaced with one that you generate. It does not correspond to any existing IIS Express value.

For further reference see <a href="http://www.iis.net/learn/extensions/using-iis-express/handling-url-binding-failures-in-iis-express" rel="noreferrer">Handling URL Binding Failures in IIS Express</a>.

blocks|key|170160|text|还要注意，对于使用SSL的IIS+Express，所使用的端口需要在44300到44399的范围内(http://www.iis.net/learn/extensions/using-iis-express/running-iis-express-without-administrative-privileges)。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|170161|因此，如果您在Visual+Studio中使用IIS+Express，请确保选择的端口在所需的范围内：vs+setting+for+iis+express|170162|entityMap|0|LINK|mutability|MUTABLE|url|http://www.iis.net/learn/extensions/using-iis-express/running-iis-express-without-administrative-privileges|1|https://i.stack.imgur.com/IiDOQ.png^0|1E|2Z|0|0|1F|Q|1|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@$A|Q|B|R|1|S]]|C|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]]|C|$]]|$1|F|3|-4|5|6|7|X|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]|N|$5|I|J|K|C|$L|O]]]]

Also note that for IIS Express to work with SSL, the port used needs to be in the 44300 through 44399 range (<a href="http://www.iis.net/learn/extensions/using-iis-express/running-iis-express-without-administrative-privileges" rel="noreferrer">http://www.iis.net/learn/extensions/using-iis-express/running-iis-express-without-administrative-privileges</a>).

So, if you're using IIS Express in Visual Studio, make sure the port selected is in the required range:
<a href="https://i.stack.imgur.com/IiDOQ.png" rel="noreferrer">vs setting for iis express</a>

blocks|key|171862|text|对于Visual+Studio+2015、IIS+Express+10、Windows+10，这些选项对我不起作用。IIS+Express+10没有修复选项。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|171863|我设法使用C:\Program+Files+(x86)\IIS+Express上提供的IisExpressAdminCmd.exe命令解决了这个问题。|offset|length|style|CODE|171864|从提升的命令提示符运行：|171865|cd+C:\Program+Files+(x86)\IIS+Express
IisExpressAdminCmd.exe+setupsslUrl+-url:urlToYourSite+-UseSelfSigned|code-block|syntax|javascript|171866|用你的url替换urlToYourSite。|171867|例如：|171868|cd+C:\Program+Files+(x86)\IIS+Express
IisExpressAdminCmd.exe+setupsslUrl+-url:https://localhost:44387/+-UseSelfSigned|171869|在那之后，我关闭了IIS+Express，并从Visual+Studio重新启动了我的站点，它提示我自动信任自签名证书。|171870|希望这能有所帮助。|171871|entityMap^0|0|5|Y|17|M|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|11|8|@$D|12|E|13|F|G]|$D|14|E|15|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|16|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|17|8|@]|9|@]|A|$M|N]]|$1|O|3|P|5|6|7|18|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|19|8|@]|9|@]|A|$]]|$1|S|3|T|5|L|7|1A|8|@]|9|@]|A|$M|N]]|$1|U|3|V|5|6|7|1B|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|1C|8|@]|9|@]|A|$]]|$1|Y|3|-4|5|6|7|1D|8|@]|9|@]|A|$]]]|Z|$]]

For Visual Studio 2015, IIS Express 10, Windows 10, these options didn't work for me. IIS Express 10 didn't have a repair option.

I managed to solve the problem using the <code>IisExpressAdminCmd.exe</code> command available at <code>C:\Program Files (x86)\IIS Express</code>.

From an elevated command prompt run:

<pre><code>cd C:\Program Files (x86)\IIS Express
IisExpressAdminCmd.exe setupsslUrl -url:urlToYourSite -UseSelfSigned
</code></pre>

Replacing urlToYourSite with your url.

e.g.

<pre><code>cd C:\Program Files (x86)\IIS Express
IisExpressAdminCmd.exe setupsslUrl -url:https://localhost:44387/ -UseSelfSigned
</code></pre>

After that I closed IIS Express and restarted my site from Visual Studio and it prompted to automatically trust the self-signed certificate.

Hope that helps.

blocks|key|169293|text|对于新的Chrome+58，下面的答案没有任何帮助。我刚刚花了1个小时卸载/重新安装证书，并试图找出问题所在。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|169294|显然，Chrome58将拒绝证书，因为"missing_subjectAltName“|169295|解决方法是使用"badidea“密码短语，或者如果您需要打开弹出窗口进行登录，则必须使用：|169296|chrome://flags/#allow-insecure-localhost|code-block|syntax|javascript|169297|来源是，赞成票属于：https://stackoverflow.com/a/38926117/2089232+:)|offset|length|169298|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/38926117/2089232^0|0|0|0|0|A|18|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|Y|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|Z|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|10|8|@]|9|@$M|11|N|12|1|13]]|A|$]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

With new Chrome 58, nothing from the answers below will help. I've just spent 1 hour uninstalling / reinstalling certificates and trying to find out where the problem is.
Apparently Chrome 58 will refuse certificate because &quot;missing_subjectAltName&quot;
The solution is either &quot;badidea&quot; passphrase or if you need to open popups for login you have to use:
<pre><code>chrome://flags/#allow-insecure-localhost
</code></pre>
The source is and the upvote belongs to: <a href="https://stackoverflow.com/a/38926117/2089232">https://stackoverflow.com/a/38926117/2089232</a> :)

blocks|key|2769672|text|我想补充这一点，因为它很可笑，但也许它会对某些人有所帮助。请记住，我以前从来没有打开过我的项目属性，所以我不知道这是如何发生的(我自己没有改变这一点，也没有机会这样做)，但是在project+>+properties+>+Web中，我的SSL+url被列为我通常的URL，但作为http而不是https+(以前是https，因为它以前是有效的)。我完成了这个页面上列出的所有步骤，卸载了VS，然后是IIS，最后注意到了错误，它应该是https://mySSLURL+(但在https中缺少s)。当我把http改成https后，一切都恢复正常了。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2769673|entityMap|0|LINK|mutability|MUTABLE|url|https://mysslurl/^0|60|G|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]]]]

I wanted to add this, because it is ridiculous but maybe it will help someone. Keep in mind that I had never opened my project properties before so I have no idea how this happened (I did not change this myself or have the opportunity to), but in Project > Properties > Web my SSL url was listed as my usual URL but as http instead of https (had previously been https because it was working before). I went through all the steps listed on this page, uninstalled VS, then IIS, and finally noticed the error which should have been <a href="https://mySSLURL" rel="nofollow noreferrer">https://mySSLURL</a> (but was missing the s in https). Once I changed http to https everything worked again.

blocks|key|168293|text|您可以重新安装IIS+Express+10.0+(或您需要的任何版本)来修复丢失的证书。Download+from+Microsoft+here|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|168294|entityMap|0|LINK|mutability|MUTABLE|url|https://www.microsoft.com/en-us/download/confirmation.aspx?id=48264^0|18|S|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]]]]

You can reinstall IIS Express 10.0 (or whatever version you need) to fix the missing certificate. <a href="https://www.microsoft.com/en-us/download/confirmation.aspx?id=48264" rel="nofollow noreferrer">Download from Microsoft here</a>

blocks|key|2982647|text|在将VS2017更新到最新版本并创建了一个新的(.Net)+MVC/WebAPI项目(从模板)后，我刚刚遇到了这个问题。我能够通过将我的端口号调整到正确的范围内来修复这个问题|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2982648|Chorme+Default+Port+Ranges+for+DEV+SSL|offset|length|2982649|我可以在这里找到：https://www.pluralsight.com/guides/visual-studio-2017-resolving-ssl-tls-connections-problems-with-iis-express|2982650|希望这能有所帮助！|2982651|entityMap|0|LINK|mutability|MUTABLE|url|https://i.stack.imgur.com/Rawpq.png|1|https://www.pluralsight.com/guides/visual-studio-2017-resolving-ssl-tls-connections-problems-with-iis-express^0|0|0|12|0|0|9|31|1|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|U|8|@]|9|@$D|V|E|W|1|X]]|A|$]]|$1|F|3|G|5|6|7|Y|8|@]|9|@$D|Z|E|10|1|11]]|A|$]]|$1|H|3|I|5|6|7|12|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|13|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q]]|R|$5|M|N|O|A|$P|S]]]]

I just had this issue after updating my VS 2017 to the latest version(s) and created a new (.Net) MVC/WebAPI project (from template). I was able to fix this by adjusting my port numbers to be within the correct range 

<a href="https://i.stack.imgur.com/Rawpq.png" rel="nofollow noreferrer">Chorme Default Port Ranges for DEV SSL</a>

Which I was able to find here: <a href="https://www.pluralsight.com/guides/visual-studio-2017-resolving-ssl-tls-connections-problems-with-iis-express" rel="nofollow noreferrer">https://www.pluralsight.com/guides/visual-studio-2017-resolving-ssl-tls-connections-problems-with-iis-express</a>

Hope this helps!

After setting up HTTPS in IIS Express, according to such articles as <a href="http://robrich.org/archive/2012/06/04/moving-to-iis-express-and-https.aspx" rel="noreferrer">this</a> and <a href="http://www.hanselman.com/blog/WorkingWithSSLAtDevelopmentTimeIsEasierWithIISExpress.aspx" rel="noreferrer">this</a>, I am unable to actually load an IIS Express site using HTTPS. In Chrome, I am only getting:

<blockquote>
 This webpage is not available (with error code "ERR_CONNECTION_RESET")
</blockquote>

...and in IE I am only getting:

<blockquote>
 Internet Explorer cannot display the webpage
</blockquote>

...when I follow the directions in those articles.

It appears this has to do with the fact that the "IIS Express Development Certificate" that IIS Express installs automatically has been removed. How do I get this certificate reinstalled?

How do I restore a missing IIS Express SSL Certificate?

Visual Studio

Windows

在IIS Express中设置HTTPS后，根据和等文章，我无法使用HTTPS实际加载IIS Express站点。在Chrome中，我只得到：此网页不可用(错误代码为"ERR_CONNECTION_RESET")IE中的...and我只能得到： Internet Explorer无法显示网页...when我遵循这些文章...

问如何还原丢失的IIS Express SSL证书？
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问如何还原丢失的IIS Express SSL证书？
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