Stopping that damn "Disk Cleanup is calculating...."
Whenever you run XP's Disk Cleanup, it wastes your time scanning your damn hard drive and calculating how much space can be saved by compressing old files. The whole "compressing old files" thing might have been a great feature when disk space was hard to come by back in the '90s, but these days it's just an annoyance. Kill it. Kill it with fire.
Registry hacks ahoy!
Fire up your favorite registry editor and go to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\VolumeCaches\Compress old files
Modify the variable REG_SZ (default), and make it blank. Don't delete it entirely, just make it full of a whole lotta nothing. (You might want to back it up before you do: Step 4).
And, voila! Disk Cleanup skips straight to finding and deleting things. (Ref)
Registry hacks ahoy!
Fire up your favorite registry editor and go to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\VolumeCaches\Compress old files
Modify the variable REG_SZ (default), and make it blank. Don't delete it entirely, just make it full of a whole lotta nothing. (You might want to back it up before you do: Step 4).
And, voila! Disk Cleanup skips straight to finding and deleting things. (Ref)