Making things worse

The various scans and anti- spyware programs I ran did take out some malware, but the whole computer is messed up now. I'm lucky if I can get into my email program at all. It works when I can open it, but it usually doesn't open. Sometimes I can get into a program, such as the virus scan, and it runs at about 1/20th the speed as usual, ie, after the whole night, it hadn't finished running. I've learned that the malware I have supposedly isn't a virus, yet it morphs and hides and pops up again and again. This will take a major computer makeover to get rid of. Time to swear.