Delete Offline Files Cache

 

• Open Registry editor (Execute Regedit from Run window)
• Go to this key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSe\Services\Csc\Parameters
• If Parameters key does not exist under CSC you can add it.
• Now in the Parameters node create a new registry value with the name FormatDatabase of type REG_DWORD (i.e DWord 32-bit value)
• Set the data in this new registry value to 1.
• Close registry editor
• Reboot the machine

Source: technlg.net