卸载ArcGISDesktop低版本程序遇到异常，如何完全卸载？

【解决办法】：
正常情况下，运行 ArcGIS for Desktop 光盘中的 “冲突检测”工具，会自动完全卸载低版本的ArcGIS 程序。如果遇到异常无法卸载（例如安装过非正式版软件），如下位置是ArcGIS程序会使用到的位置，请尝试手动清空，有些文件夹是隐藏文件夹，设置显示出来然后删除。

文件夹:

C:\Program Files (x86)\ArcGIS
C:\Program Files (x86)\Esri
C:\Program Files (x86)\Common Files\ArcGIS
C:\Program Files (x86)\Common Files\Esri
C:\Program Files\ArcGIS
C:\Program Files\Esri
C:\Program Files\Common Files\ArcGIS
C:\Program Files\Common Files\Esri
C:\Program Data\Esri
C:\Program Data\ArcGIS
C:\Program Data\FLEXnet
C:\Users\<USERNAME>\AppData\Local\ESRI
C:\Users\<USERNAME>\AppData\Local\ArcGIS
C:\Users\<USERNAME>\AppData\Roaming\ESRI
C:\Users\<USERNAME>\AppData\Roaming\ArcGIS
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\ArcGIS
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Esri

注册表：

HKEY_LOCAL_MACHINE\SOFTWARE\ESRI
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\ESRI
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Flex LM License Manager
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\<Delete Any Folder that contains ArcGIS or Esri>
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\ArcGIS Server
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\<Delete Any Folder that contains ArcGIS or Esri within>
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\FLEXnet Licensing Service
HKEY_CLASSES_ROOT\Installer\Products\<Delete Any Folder that contains ArcGIS or Esri within>
HKEY_CLASSES_ROOT\Installer\Assemblies\<Delete Any Folder that contains ArcGIS or Esri within>
HKEY_CLASSES_ROOT\<Delete and Folder that contains ArcGIS or Esri within>
HKEY_CLASSES_ROOT\Installer\Assemblies\Global\<Delete all Keys beginning with ESRI or ArcGIS>

安全设置：

Security Settings -> Local Policies -> Security Options
Locate User Account Control: Run all administrators in Admin Approval and change the setting from Enabled to Disabled
Uninstall: C:\Windows\assembly\Esri.* (This can be hundreds of files)
Uninstall: C:\Windows\assembly\ArcGIS.* (This can be hundreds of files)