Useless Files Wildcards
File wildcards are templates, or masks, used to search disks for unnecessary files. You can add, remove, and change these masks.
To edit a mask, click the click to edit the useless files wildcards link on the Scanning Conditions tab in the Disk Cleanup window. This takes you to the Useless Files Wildcards tab in Reg Organizer's Settings window.
You can see a list of all the file wildcards Reg Organizer uses in Disk Cleanup mode. The Add, Remove and Change buttons allow you to perform any of these operations with wildcards.
To set the default wildcards, click the corresponding button at the bottom of the Settings dialog box.