My computer has been taken over by viruses - erasing hard drive help?

My computer was infected with a virus called 'smitfraud' also with 'Winantivirus 2007' or somthing. it has been causing freezing, popups and general annoyance! I really need help - computer whiz on this one....I ran several 'free' adware, etc. removal tools but nothing worked: norton, PC clean, and spybot (search and destroy). Now I want to know if wiping my hard drive clean will restore my computer to its original form? if so how do I do it? will I have to reinstall Verizon DSL and everything thanks.

My computer has been taken over by viruses - erasing hard drive help?noton

Two solutions

One if this is a Dell do this

Using Dell PC Restore by Symantec

NOTICE: Using Dell PC Restore permanently deletes all data on the hard drive and removes any applications or

drivers installed after you received your computer. If possible, back up the data before using PC Restore. Use PC

Restore only if System Restore did not resolve your operating system problem.

NOTE: Dell PC Restore by Symantec is not available in all countries or on all computers.

Use Dell PC Restore by Symantec only as the last method to restore your operating system.

PC Restore restores your hard drive to the operating state it was in when you purchased the computer.

Any programs or files added since you received your computer鈥攊ncluding data files鈥攁re permanently