blocks|key|3134550|text|执行ziesemer建议的所有操作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3134551|您可能还希望从注册表中删除：|3134552|HKEY_LOCAL_MACHINE\SOFTWARE\ODBC\ODBCINST.INI\<any+Ora*+drivers>+keys+++++

HKEY_LOCAL_MACHINE\SOFTWARE\ODBC\ODBCINST.INI\ODBC+Drivers<any+Ora*+driver>+values|code-block|syntax|javascript|3134553|因此，它们不再出现在ODBC数据源管理器的[系统上安装的ODBC驱动程序]中|3134554|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|$]]

Do everything suggested by ziesemer. 

You may also want to remove from the registry:

<pre><code>HKEY_LOCAL_MACHINE\SOFTWARE\ODBC\ODBCINST.INI\&lt;any Ora* drivers&gt; keys 

HKEY_LOCAL_MACHINE\SOFTWARE\ODBC\ODBCINST.INI\ODBC Drivers&lt;any Ora* driver&gt; values
</code></pre>

So they no longer appear in the "ODBC Drivers that are installed on your system" in ODBC Data Source Administrator

blocks|key|2920503|text|执行ziesemer建议的所有操作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2920504|您可能还想执行以下操作：|2920505|Oracle|2920506|停止与相关的服务(在从注册表中删除它们之前)。|unordered-list-item|2920507|在注册表中，不仅查找名为"Oracle“的条目，还查找例如”ODP“。|2920508|2920509|2920510|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|Q|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|R|8|@]|9|@]|A|$]]|$1|I|3|J|5|H|7|S|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|T|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|N|$]]

Do everything suggested by ziesemer. 

You may also want to :

<ul>
<li>Stop the Oracle-related services (before deleting them from the
registry). </li>
<li>In the registry, look not only for entries named "Oracle"
but also e.g. for "ODP".</li>
</ul>

blocks|key|2920574|text|您应该考虑更多操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2920575|2920576|删除MS分布式事务处理协调器(MSDTC)的注册表项|unordered-list-item|2920577|2920578|注意:在互联网上，我只在一个(私人)页面上找到了这一步。我不知道它是否是必需的/有效的，或者它是否破坏了你电脑上的任何东西。|2920579|-+Open+Regedit
-+Navigate+to+`HKEY_LOCAL_MACHINE\Software\Microsoft\MSDTC\MTxOCI`+
-+Add+an+x+before+each+string+for+`OracleOciLib`,+`OracleSqlLib`,+and+`OracleXaLib`+
-+Navigate+to+`HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\MSDTC\MTxOCI`+
-+Add+an+x+before+each+string+for+`OracleOciLib`,+`OracleSqlLib`,+and+`OracleXaLib`+|code-block|syntax|javascript|2920580|否则，这些文件(如果存在)将在下次重新启动时仍在使用，并且无法删除。|2920581|2920582|删除环境变量ORACLE_HOME、ORACLE_BASE、TNS_ADMIN、NLS_LANG+(如果存在|offset|length|style|CODE|2920583|2920584|查看Oracle文档，查找所有与Oracle相关的环境变量，但除了上面列出的变量外，它们在Windows客户端上很少使用：Oracle+Environment+Variables+|2920585|Unregister+oci.dll|2920586|2920587|-+Open+a+command+line+window+(Start+Menu+->+Run...+->+cmd)
-+Enter+`regsvr32+/u+oci.dll`,+resp.+`%25windir%25\SysWOW64\regsvr32+/u+oci.dll`
-+In+some+cases+the+file+`%25ORACLE_HOME%25\bin\oci.dll`+is+locked+and+you+cannot+delete+it.+In+such+case+rename+the+file+(e.g.+to+oci.dll.x)+and+reboot+the+PC,+afterwards+you+can+delete+it.|2920588|​|2920589|Oracle+|2920590|从全局程序集缓存中删除+.NET程序集。通常使用gacutil实用程序执行此操作(如果系统上可用)。会是这样的：|2920591|2920592|gacutil+/u+Policy.10.1.Oracle.DataAccess+gacutil+/u+Policy.10.2.Oracle.DataAccess+gacutil+/u+Policy.1.102.Oracle.DataAccess+gacutil+/u+Policy.1.111.Oracle.DataAccess+gacutil+/u+Policy.2.102.Oracle.DataAccess+gacutil+/u+Policy.2.111.Oracle.DataAccess+gacutil+/u+Policy.2.112.Oracle.DataAccess+gacutil+/u+Policy.2.121.Oracle.DataAccess+gacutil+/u+Policy.2.122.Oracle.DataAccess+gacutil+/u/u+Policy.4.121.Oracle.DataAccess+gacutil+/u+Policy.4.122.Oracle.DataAccess+gacutil+/u+Oracle.DataAccess+gacutil+/u+Oracle.DataAccess.resources+gacutil+/u+Policy.4.121.Oracle.ManagedDataAccess+gacutil+/u+Policy.4.122.Oracle.ManagedDataAccess+gacutil+/u+Oracle.ManagedDataAccess+gacutil+/u+Oracle.ManagedDataAccess.resources+gacutil+/u+Oracle.ManagedDataAccessDTC+gacutil+/u+gacutil|2920593|-+Entry+`System.Data.OracleClient`+should+not+be+removed,+this+one+is+installed+by+Microsoft+-+not+an+Oracle+component!
-+Instead+of+`gacutil+/u+...`+you+can+also+use+`OraProvCfg+/action:ungac+/providerpath:...`+if+OraProvCfg+is+still+available+on+your+system.+You+may+find+it+at+`%25ORACLE_HOME%25\odp.net\managed\x64\OraProvCfg.exe`.+|2920594|2920595|2920596|使用文本编辑器，打开XML配置文件%25SYSTEMROOT%25\Microsoft.NET\Framework64\v4.0.30319\Config\machine.config并删除分支<oracle.manageddataaccess.client>。|2920597|2920598|-+Do+the+same+with:|2920599|+%25SYSTEMROOT%25\Microsoft.NET\Framework64\v4.0.30319\Config\machine.config+%25SYSTEMROOT%25\Microsoft.NET\Framework\v4.0.30319\Config\machine.config+%25SYSTEMROOT%25\Microsoft.NET\Framework64\v4.0.30319\Config\web.config+%25SYSTEMROOT%25\Microsoft.NET\Framework\v4.0.30319\Config\web.config|2920600|除了手动编辑XML+Config文件之外，您还可以运行(如果您的系统上仍然可以使用OraProvCfg.exe+)：|2920601|%25ORACLE_HOME%25\odp.net\managed\x64\OraProvCfg.exe+%25ORACLE_HOME%25\odp.net\managed\x86\OraProvCfg.exe+/product:odpm+/frameworkversion:v4.0.30319+/action:unconfig+/product:odpm+/frameworkversion:v4.0.30319+/action:unconfig+/product:odp+/frameworkversion:v4.0.30319+/action+/action：取消配置/product:odp+/frameworkversion:v4.0.30319|2920602|2920603|检查以下注册表项并将其删除(如果存在|2920604|2920605|HKLM\SOFTWARE\Wow6432Node\Microsoft.NETFramework\v2.0.50727\AssemblyFoldersEx\ODP.Net+HKLM\SOFTWARE\Wow6432Node\Microsoft.NETFramework\v4.0.30319\AssemblyFoldersEx\ODP.Net+HKLM\SOFTWARE\Wow6432Node\Microsoft.NETFramework\v4.0.30319\AssemblyFoldersEx\Oracle.ManagedDataAccess+HKLM\SOFTWARE\Wow6432Node\Microsoft.NETFramework\v4.0.30319\AssemblyFoldersEx\Oracle.ManagedDataAccess.EntityFramework6+HKLM\SOFTWARE\Wow6432Node\Microsoft.NETFramework\v4.0.30319\AssemblyFoldersEx\odp.net.managed+HKLM\SOFTWARE\Wow6432Node\Microsoft.NETFramework\v4.0.30319\AssemblyFoldersEx\Oracle.DataAccess.EntityFramework6\+HKLM\SOFTWARE\Microsoft.NETFramework\v2.0.50727\AssemblyFoldersEx\ODP.Net+HKLM\SOFTWARE\Microsoft.NETFramework\v4.0.30319\AssemblyFoldersEx\ODP.Net+HKLM\SOFTWARE\Microsoft.NETFramework\v4.0.30319\AssemblyFoldersEx\Oracle.ManagedDataAccess+HKLM\SOFTWARE\Microsoft.NETFramework\v4.0.30319\AssemblyFoldersEx\Oracle.ManagedDataAccess.EntityFramework6+HKLM\SOFTWARE\Microsoft.NETFramework\v4.0.30319\AssemblyFoldersEx\odp.net.managed+HKLM\SOFTWARE\Microsoft.NETFramework用于.NET的\v4.0.30319\AssemblyFoldersEx\Oracle.DataAccess.EntityFramework6\+HKLM\SYSTEM\CurrentControlSet\Services\EventLog\Application\Oracle数据提供程序，适用于.NET的托管驱动程序HKLM\SYSTEM\CurrentControlSet\Services\EventLog\Application\Oracle数据提供程序，适用于OLE+DB的非托管驱动程序|2920606|删除清单文件夹，通常为C:\Program+Files\Oracle\Inventory和temp文件夹%25TEMP%25\deinstall\、%25TEMP%25\OraInstall\和%25TEMP%25\CVU*+(例如%25TEMP%25\CVU_11.1.0.2.0_domscheit)+(如果存在)。|2920607|2920608|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.oracle.com/cd/E14571_01/bi.1111/b32121/pbr_rfap001.htm#RSPUB23916|1|https://msdn.microsoft.com/en-us/library/ex0ss12c%2528v=vs.110%2529.aspx^0|0|0|0|0|0|0|0|0|6|B|I|B|U|9|14|8|0|0|1P|S|0|0|0|0|0|0|0|O|7|1|0|0|0|0|0|0|H|1Z|2L|X|0|0|0|0|0|0|0|0|0|0|B|X|1G|H|1Y|I|2H|B|2W|V|0|0^^$0|@$1|2|3|4|5|6|7|2B|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|2C|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|2D|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|2E|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|2F|8|@]|9|@]|A|$]]|$1|I|3|J|5|K|7|2G|8|@]|9|@]|A|$L|M]]|$1|N|3|O|5|6|7|2H|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|2I|8|@]|9|@]|A|$]]|$1|Q|3|R|5|E|7|2J|8|@$S|2K|T|2L|U|V]|$S|2M|T|2N|U|V]|$S|2O|T|2P|U|V]|$S|2Q|T|2R|U|V]]|9|@]|A|$]]|$1|W|3|-4|5|6|7|2S|8|@]|9|@]|A|$]]|$1|X|3|Y|5|6|7|2T|8|@]|9|@$S|2U|T|2V|1|2W]]|A|$]]|$1|Z|3|10|5|E|7|2X|8|@]|9|@]|A|$]]|$1|11|3|-4|5|6|7|2Y|8|@]|9|@]|A|$]]|$1|12|3|13|5|K|7|2Z|8|@]|9|@]|A|$L|M]]|$1|14|3|15|5|6|7|30|8|@]|9|@]|A|$]]|$1|16|3|17|5|6|7|31|8|@]|9|@]|A|$]]|$1|18|3|19|5|E|7|32|8|@]|9|@$S|33|T|34|1|35]]|A|$]]|$1|1A|3|-4|5|6|7|36|8|@]|9|@]|A|$]]|$1|1B|3|1C|5|6|7|37|8|@]|9|@]|A|$]]|$1|1D|3|1E|5|K|7|38|8|@]|9|@]|A|$L|M]]|$1|1F|3|15|5|6|7|39|8|@]|9|@]|A|$]]|$1|1G|3|-4|5|6|7|3A|8|@]|9|@]|A|$]]|$1|1H|3|1I|5|E|7|3B|8|@$S|3C|T|3D|U|V]|$S|3E|T|3F|U|V]]|9|@]|A|$]]|$1|1J|3|-4|5|6|7|3G|8|@]|9|@]|A|$]]|$1|1K|3|1L|5|K|7|3H|8|@]|9|@]|A|$L|M]]|$1|1M|3|1N|5|6|7|3I|8|@]|9|@]|A|$]]|$1|1O|3|1P|5|6|7|3J|8|@]|9|@]|A|$]]|$1|1Q|3|1R|5|6|7|3K|8|@]|9|@]|A|$]]|$1|1S|3|-4|5|6|7|3L|8|@]|9|@]|A|$]]|$1|1T|3|1U|5|E|7|3M|8|@]|9|@]|A|$]]|$1|1V|3|-4|5|6|7|3N|8|@]|9|@]|A|$]]|$1|1W|3|1X|5|6|7|3O|8|@]|9|@]|A|$]]|$1|1Y|3|1Z|5|E|7|3P|8|@$S|3Q|T|3R|U|V]|$S|3S|T|3T|U|V]|$S|3U|T|3V|U|V]|$S|3W|T|3X|U|V]|$S|3Y|T|3Z|U|V]]|9|@]|A|$]]|$1|20|3|-4|5|6|7|40|8|@]|9|@]|A|$]]|$1|21|3|-4|5|6|7|41|8|@]|9|@]|A|$]]]|22|$23|$5|24|25|26|A|$27|28]]|29|$5|24|25|26|A|$27|2A]]]]

There are some more actions you should consider:

<ul>
<li>Remove Registry Entries for MS Distributed Transaction Coordinator (MSDTC) 

Note: on the Internet I found this step only at a single (private) page. I don't know if it is required/working or if it breaks anything on your PC.

<ul>
<li>Open Regedit</li>
<li>Navigate to <code>HKEY_LOCAL_MACHINE\Software\Microsoft\MSDTC\MTxOCI</code> </li>
<li>Add an x before each string for <code>OracleOciLib</code>, <code>OracleSqlLib</code>, and <code>OracleXaLib</code> </li>
<li>Navigate to <code>HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\MSDTC\MTxOCI</code> </li>
<li>Add an x before each string for <code>OracleOciLib</code>, <code>OracleSqlLib</code>, and <code>OracleXaLib</code> </li>
</ul>

Otherwise these files, if they exist, will still be in use next time you reboot, and unable to be deleted.</li>
<li>Remove environment variable <code>ORACLE_HOME</code>, <code>ORACLE_BASE</code>, <code>TNS_ADMIN</code>, <code>NLS_LANG</code> if exist

Check also Oracle doc to find all Oracle related environment variables, however apart from variables listed above they are very rarely used on Windows Client: <a href="http://docs.oracle.com/cd/E14571_01/bi.1111/b32121/pbr_rfap001.htm#RSPUB23916" rel="nofollow noreferrer">Oracle Environment Variables</a> </li>
<li>Unregister oci.dll

<ul>
<li>Open a command line window (Start Menu -> Run... -> cmd)</li>
<li>Enter <code>regsvr32 /u oci.dll</code>, resp. <code>%windir%\SysWOW64\regsvr32 /u oci.dll</code></li>
<li>In some cases the file <code>%ORACLE_HOME%\bin\oci.dll</code> is locked and you cannot delete it. In such case rename the file (e.g. to oci.dll.x) and reboot the PC, afterwards you can delete it.</li>
</ul></li>
<li>Remove Oracle .NET assemblies from Global Assembly Cache (GAC). You do this typically with the <a href="https://msdn.microsoft.com/en-us/library/ex0ss12c%28v=vs.110%29.aspx" rel="nofollow noreferrer">gacutil</a> utility, if available on your system. Would be like this:

<pre><code>gacutil /u Policy.10.1.Oracle.DataAccess
gacutil /u Policy.10.2.Oracle.DataAccess
gacutil /u Policy.1.102.Oracle.DataAccess
gacutil /u Policy.1.111.Oracle.DataAccess

gacutil /u Policy.2.102.Oracle.DataAccess
gacutil /u Policy.2.111.Oracle.DataAccess
gacutil /u Policy.2.112.Oracle.DataAccess
gacutil /u Policy.2.121.Oracle.DataAccess
gacutil /u Policy.2.122.Oracle.DataAccess

gacutil /u Policy.4.112.Oracle.DataAccess
gacutil /u Policy.4.121.Oracle.DataAccess
gacutil /u Policy.4.122.Oracle.DataAccess

gacutil /u Oracle.DataAccess
gacutil /u Oracle.DataAccess.resources

gacutil /u Policy.4.121.Oracle.ManagedDataAccess
gacutil /u Policy.4.122.Oracle.ManagedDataAccess
gacutil /u Oracle.ManagedDataAccess
gacutil /u Oracle.ManagedDataAccess.resources
gacutil /u Oracle.ManagedDataAccessDTC
gacutil /u Oracle.ManagedDataAccessIOP
gacutil /u Oracle.ManagedDataAccess.EntityFramework
</code></pre>

<ul>
<li>Entry <code>System.Data.OracleClient</code> should not be removed, this one is installed by Microsoft - not an Oracle component!</li>
<li>Instead of <code>gacutil /u ...</code> you can also use <code>OraProvCfg /action:ungac /providerpath:...</code> if OraProvCfg is still available on your system. You may find it at <code>%ORACLE_HOME%\odp.net\managed\x64\OraProvCfg.exe</code>. </li>
</ul></li>
<li>With a text editor, open XML Config file <code>%SYSTEMROOT%\Microsoft.NET\Framework64\v4.0.30319\Config\machine.config</code> and delete branch <code>&lt;oracle.manageddataaccess.client&gt;</code>, if existing. 

<ul>
<li>Do the same with:

<pre><code>%SYSTEMROOT%\Microsoft.NET\Framework64\v4.0.30319\Config\machine.config
%SYSTEMROOT%\Microsoft.NET\Framework\v4.0.30319\Config\machine.config
%SYSTEMROOT%\Microsoft.NET\Framework64\v4.0.30319\Config\web.config
%SYSTEMROOT%\Microsoft.NET\Framework\v4.0.30319\Config\web.config
</code></pre></li>
</ul>

Instead of editing the XML Config file manually you can also run (if OraProvCfg.exe is still available on your system):

<pre><code>%ORACLE_HOME%\odp.net\managed\x64\OraProvCfg.exe /action:unconfig /product:odpm /frameworkversion:v4.0.30319 
%ORACLE_HOME%\odp.net\managed\x86\OraProvCfg.exe /action:unconfig /product:odpm /frameworkversion:v4.0.30319
%ORACLE_HOME%\odp.net\managed\x64\OraProvCfg.exe /action:unconfig /product:odp /frameworkversion:v4.0.30319 
%ORACLE_HOME%\odp.net\managed\x86\OraProvCfg.exe /action:unconfig /product:odp /frameworkversion:v4.0.30319
</code></pre></li>
<li>Check following Registry Keys and delete them if existing

<pre><code>HKLM\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v2.0.50727\AssemblyFoldersEx\ODP.Net
HKLM\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v4.0.30319\AssemblyFoldersEx\ODP.Net
HKLM\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v4.0.30319\AssemblyFoldersEx\Oracle.ManagedDataAccess
HKLM\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v4.0.30319\AssemblyFoldersEx\Oracle.ManagedDataAccess.EntityFramework6
HKLM\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v4.0.30319\AssemblyFoldersEx\odp.net.managed
HKLM\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v4.0.30319\AssemblyFoldersEx\Oracle.DataAccess.EntityFramework6\

HKLM\SOFTWARE\Microsoft\.NETFramework\v2.0.50727\AssemblyFoldersEx\ODP.Net
HKLM\SOFTWARE\Microsoft\.NETFramework\v4.0.30319\AssemblyFoldersEx\ODP.Net
HKLM\SOFTWARE\Microsoft\.NETFramework\v4.0.30319\AssemblyFoldersEx\Oracle.ManagedDataAccess
HKLM\SOFTWARE\Microsoft\.NETFramework\v4.0.30319\AssemblyFoldersEx\Oracle.ManagedDataAccess.EntityFramework6
HKLM\SOFTWARE\Microsoft\.NETFramework\v4.0.30319\AssemblyFoldersEx\odp.net.managed
HKLM\SOFTWARE\Microsoft\.NETFramework\v4.0.30319\AssemblyFoldersEx\Oracle.DataAccess.EntityFramework6\

HKLM\SYSTEM\CurrentControlSet\Services\EventLog\Application\Oracle Data Provider for .NET, Managed Driver
HKLM\SYSTEM\CurrentControlSet\Services\EventLog\Application\Oracle Data Provider for .NET, Unmanaged Driver
HKLM\SYSTEM\CurrentControlSet\Services\EventLog\Application\Oracle Provider for OLE DB
</code></pre></li>
<li>Delete the Inventory folder, typically <code>C:\Program Files\Oracle\Inventory</code> and <code>C:\Program Files (x86)\Oracle\Inventory</code></li>
<li>Delete temp folders <code>%TEMP%\deinstall\</code>, <code>%TEMP%\OraInstall\</code> and <code>%TEMP%\CVU*</code> (e.g <code>%TEMP%\CVU_11.1.0.2.0_domscheit</code>) if existing.</li>
</ul>

How to uninstall / completely remove Oracle 11g (client)?

deinstall.bat doesn't work.

Edit: Further discussion related to why this question was closed and deleted: <a href="https://meta.stackexchange.com/questions/190441/why-was-this-question-related-to-uninstalling-the-oracle-database-client-deleted">https://meta.stackexchange.com/questions/190441/why-was-this-question-related-to-uninstalling-the-oracle-database-client-deleted</a>

How to uninstall / completely remove Oracle 11g (client)?

Windows

如何卸载/完全删除Oracle 11g (客户端)？deinstall.bat不工作。编辑：与关闭和删除此问题的原因相关的进一步讨论：

问如何卸载/完全删除Oracle 11g (客户端)？
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