Are you saying that you have no restore points at all?
It's OK to go back a month - you won't lose any documents.
If no joy, press F8 while starting and select Safe Mode with Network. Scan for viruses and spyware there. The one problem with Safe Mode is that many programs cannot be installed there. We may have to get creative to get something installed that can clean up properly.
Please - no drama. It's not going to make things better or faster. You have to remain calm. Get emotional and help is going to be hard to come by here. People bail out when the users get "needy".