Hello eja642,
If you reformatted the machine before reinstalling Windows, that should have gotten rid of any Vundo onboard. I'd be happy to do a check for you, but HijackThis is no longer the preferred initial scanning tool in this forum.
If you'd please follow our pre-posting process outlined here, we can get started:
NEW INSTRUCTIONS - Read This Before Posting For Malware Removal Help
After running through all the steps, you shall have a proper set of logs. Please post them in your next reply.
If you have trouble with one of the steps, simply move on to the next one, and make note of it in your reply.
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