在开始运行中输入regedit定位到HKEY-CURRENT-USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\EXPLORER,删除NOVIEWCONTEXTMENU和NOBROWSERCONTEXTMENU(如果有的话),再打开HKEY-LOCAK-MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\EXPLORER删除同样的东西即可