Default Drive Tools in XP

[NitroNits]

I tried changing my default disk cleaning tool by editing the registry (as explained in Digit's 'Take A Crack' section in the March 2007 issue) but it didnt work out. So i wish to revert back to the default disk cleaner but i dont know how to do this. Please help!

[Sparsh007]

try using the System Restore option to a date beofre u tried dat
CAUTION:Some other settings may revert too