This is the best Registry program I've ever used. It's also free. Once downloaded, Click on "Clean The Registry" (make sure the "backup before deletion" box is checked -- it should be by default), then click OK, and let it do it's magic. If your machine doesn't crash, it'll surely find loads of stuff. Choose "Select All" and then hit the Delete button on your keyboard. (Your mileage may vary, but I've never had it make a mistake.) Now all the bad entries are gone, but they've also been backed up.
If you're not comfortable with what to delete and not delete, then
4) Register at Castlecops and tell them your problem and include the log from hijackthis. Read the rules of the board first so you don't waste their time. If I recall, I think this is a volunteer effort by some Google employees. They're very helpful. Tell them your problem, show them your hijackthis log, and they'll walk you through it. If they can fix your problem, donate a few bucks to them.
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