PC is infected with spyware.?

My PC is infected with PwDump and LSADump. They're password stealing software. Something about sending Windows password hashes to a remote computer. I use Norton with Verizon Yahoo Online Protection. The anti-spy cannot delete it, because it's an 'unsupported' file. I went to the Symantec site for instructions to manually remove it, I deleted the infected files from the registry, but it's still there! I tried System Restore, but I could only click on a bold date, and the only bold date on there is today and yesterday. If I re-install Windows, too much will be lost. And Norton will charge $100 to remotely remove it. Any ideas?

PC is infected with spyware.?panda

copy the data on Cd's and DVDs and reinstall windows

PC is infected with spyware.?suzuki

Try installing the free lavasoft Ad-ware 07 and the AVG anti spyware system or invest on a couple of good antispyware software such as spyware doctor and Xoftspy.
Run your anti-spyware in Safe Mode.If you dont have an excellent anti-spyware or your current anti-spyware can't prevent spyware from Invading you computer,download a better one.

There are top 5 anti-spywares reviews,comparisons and download links on

http://www.anti-spyware-center.com