When I ordered this it was posted as being vista compatible. However it needed a visit to White canyon's web site to down load a fix before it would run.It's a very straight forward program that scrubs all the personal data from your day to day windows use, like cookies, edited files names, temporary files etc.It will also let you completely remove files, for good, at various strengths. So , for example, you can delete with 3 over writes for DOD standard removal, or 7 if you are paranoid, or even 12 for spies (if you have the patience).Handy if you are selling your old computer. It will speed up the PC if you let it erase the deleted file names etc. that can clutter up the hard drive.Easy to use and effective.