eclipsr Kepler 升級adt 22.報錯

報錯局部內容：

An error occurred while uninstalling session context was:(profile=epp.package.cpp, phase=org.eclipse.equinox.internal.p2.engine.phases.Uninstall, operand=[R]org.eclipse.rcp.configuration_root.win32.win32.x86_64 1.0.0.v20130521-1847 --> null, action=org.eclipse.equinox.internal.p2.touchpoint.natives.actions.CleanupzipAction). Backup of file D:\eclipse\eclipse.exe failed. Can not remove : D:\eclipse\eclipse.exe

解決：

I had same issue with updating Kepler. W7 with admin. 

How to solve:

1. Run eclipse
   
2. Rename eclipse exe to eclipse.exe.back
   
3. Run updates
   
4. Updates executed successfully

http://www.eclipse.org/forums/index.php/t/487240/