Remove the temporary files that end in the extensions BAK, CHK, GID, OLD, or TMP on any fixed hard drive. Additional file extensions may also be added to the list of temporary files to scan. It can be helpful not to scan some directories for these types of files which can be selected under " Search Exceptions ". When you are done selecting the file extensions and search exceptions, go to the " Start " menu; Here you can select how the found files will be handled. The first options allows you to examine each file and make a zip backup of the file when you delete them ( default ). The other options can either delete to the recycle bin ( two different methods ) or delete without sending to the recycle bin ( two methods also ). To start the scan, click on " Scan Now " . For further cleaning of the temporary files, a " Wipe Free Space " operation can be run from the " Clean Folders " section. This operation will erase the file name from the free space and also prevent any of the temporary files from being restored. If you are unsure of the options that are available, it is suggested that you use the default option.