Make Disk Cleanup Run Faster

WARNING:  This tip involves editing the Registry, so only perform these steps IF you feel comfortable making changes to a part of the computer where one wrong move can bring your whole system down.

Performing these steps will disable the "compress files" part of the Windows Clean Up utility:

1. Click Start –> Run
2. Type:   regedit
3. Navigate to and expand the following registry key:
   HKEY_LOCAL_MACHINE  –> SOFTWARE –>   Microsoft –>   Windows –>  CurrentVersion –> Explorer –> VolumeCaches

   Delete the "Compress old files" registry key on the right hand side

4. Close the Registry Editor
5. Restart the computer