In Windows 7 there is no user interface to delete Offline Files cache (CSC cache). The only way to delete cache is using registry key. Detail steps are given below.
- Open Registry editor (Execute
Regeditfrom Run window)
- Go to this key:
Parameterskey does not exist under
CSCyou can add it.
- Now in the Parameters node create a new registry value with the name
REG_DWORD(i.e DWord 32-bit value)
- Set the data in this new registry value to 1.
- Close registry editor
- Reboot the machine
The above steps can only be done from an administrator’s account. We can do the above steps from command line too. For this you just need to run the below command from elevated administrator command prompt.
reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Csc\Parameters /v FormatDatabase /t REG_DWORD /d 1 /f
If you run the above command from normal administrator command prompt you will get “Error: Access is denied” message.
'Delete temporary files' button under the
'Disk Usage' tab in
'Manage Offline files' window is not meant for deleting offline files cache. Some people have the misconception that this deletes offline files cache. This is not true.