I would have removed temp files before running the scans, as that would reduce the content needing to be scanned, etc.

I don’t thing Spybot S&D or AdAware would bring much to the party. SpywareBlaster is a passive tool so you can’t actually run a scan with it.

I don’t know if you have a lot of old restore points, although avast didn’t find anything in there so they should be OK. So creation of a new restore point wouldn’t be bad as it is looking much better than it was.

However, I’m surprised that the avast scan found Alureon-G@mbr.[rtk], so I would check again with aswMBR.