Delete Offline Files Cache using the GUI (Graphical user interface)
- Open Registry editor.
- Go to the path HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Csc\Parameters.

- If Parameters does not exist under CSC then create a new node with that name.
- In the Parameters node create a new registry value name it – FormatDatabase of type REG_DWORD.

- Set the registry value to 1 as show in the image below.

- Close all the windows then restart the computer.
Delete Offline Files Cache Using CLI (Command Line Interface)
Run the below command from elevated administrator command prompt. reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSe\Services\Csc\Parameters /v FormatDatabase /t REG_DWORD /d 1 /
NOTE: Using CLI is particularly for Windows 7 Operating System.
Summary

Aggregate Rating
no rating based on votes
CSC
Operating System Windows 10/7