A. 安裝arcgis10.2一直說已安裝
License Manager卸載了嗎？還是沒有卸載干凈。
ArcGIS軟體有個統一的問題，卸載軟體如果不把服務停止了就會造成軟體卸載不幹凈。以後卸載軟體先把服務停止了就不會有問題了。
這里有個徹底卸載ArcGIS軟體的方法，但是如果誤刪除會造成系統崩潰請慎用！！！
刪除一下文件或注冊表
文件夾:
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
注冊表：
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\Procts\<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>
安全設置：
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) 收起