Clean up Old RTM & SP1 Backup Files in vista Sp2To housekeep your hard disk and clean up those old and unused SP1 backup files, users probably can try the new Service Pack Cleanup Tool which is also named as compcln.exe. This successor for SP1 cleanup tool, Vsp1cln.exe, can easily remove all the system files (RTM & SP1) inherited from the older versions but replaced by Vista SP2.Running this compeln.exe tool is pretty simple:1. Click Start>All Programs>Accessories>Command Prompt or click Start>Run and type cmd to open Command Prompt Windows2. Execute the command “Compcln.exe”. The path is “c:\Windows\System32 \compcln.exe”.3. Users will be prompted a question whether to keep Vista SP2 permanently in the system.4. Once users type “Y” and press enter, the system will start performing the windows components clean.After the cleansing process, users will notice the free hard disk space has increased substantially.