Just ran the free version of Anvisoft (took about 18 hours) and I still have Snap.do listed in my programs and features. I've worked for 3 days and 2 nights uninstalling and deleating. Running scans etc. I'm using a Dell which runs Vista, using internet explorer. Uninstalled Chrome and Firefox as they were contaminated. Went into folders and deleated everything that looked suspiceous. So, I'm looking for further help. If the answer lies in going and purchasing an Apple maybe I should do that. Thanks for you help.