I want to restore my computer to brand new

[_brady_]

It's been 2 1/2 years since I bought this Dell Dimension 4600 and it's starting to run pretty slow. I have tons of poker programs scattered that I don't use anymore and just think it's time to start all over.

Anyway, I think that it came with restore CDs but, I cannot find those. If I want to go back to day 1 is there anything else I can do? System Restore only goes back to January of this year.

Thank you.