Being 76 and “TechnoChallenged” I often have to work out my own solutions for things like “Open Candy” and that dreadful, ubiquitous “Ask Toolbar” plus a host of other unsolicited trash that sneaks onto my PC.
Some years ago I installed RegSeeker v.155 on my XP Home and installed it again on my Windows 7 Pro, because, though a bit risky if you are not careful, it is the best solution, in my experience, of getting rid of these horrible things.
I first try the free Revo Uninstaller. Then I run “Everything” search and delete anything “Ask Toolbar” right from Everything. Third, I open RegSeeker and type in under "Find in Registry"
the exact name (being careful about spaces too, e.g. is it “AskToolbar” or “Ask Toolbar”?) of the unwanted and hard-to-remove program.
Reg Seeker finds what you are looking for every time. Let it run to 100% which, when done, will show how many entries RegSeeker found, and the 100% will become “0” showing the search has finished. Click “Select All”, untick “Backup before deletion” on the bottom left of RegSeeker and under “Action”, click “Delete All” (if you forget this, only the deleted items are backed up anyway, so open “Backups” select the backup at the top of the page of RegSeeker with a left-click, and delete with a right-click) Restart, run Everything and RegSeeker again, in case some entries were missed.
Hope this works for you. Revo Uninstaller (free) always leaves a lot of registry entries , files and folders behind. I find that running these two free programs after each uninstall cleans the lot out.
I Auto-Clean my registry once a month with RegSeeker: Auto Clean is dead-safe. The problem comes in when one looks for a file like Opera. You get pages of blue opera, but if you look carefully, you find the blue opera is followed by “tion” in black = “operation”. So care needs to be exercised. Well defined names, like CCleaner, Avira, Conduit etc are no problem. I have been following this procedure for years and have never trashed my registry.