You can use this option to remove cache files in the System folders. Any cache files used by the computer can be removed without risk. You can recover space and prevent a damaged file from impacting computer functions by deleting these files.
In the Maintenance pane, select the System checkbox, then click the Options button to access advanced settings.
Note: This operation can take a very long time to complete. Wait for the verification to finish.
The computer may slow down temporarily after this operation is completed. This is normal, as the caches have to be rebuilt.