How Do I Find Out What Drivers I Need If My Computer Was Reformatted?

Due to a virus I had to format my computer when I installed a new version of windows xp on my computer. The original disk that came with the computer are long gone. I wasn’t able to back the drivers up since the virus wouldn’t allow access to the desktop. Now that I have already formatted the computer and res-installed a new version of Xp is there any way to reinstall drivers? Maybe a program that auto detects what is needed?

What Type Of Disc Defragmentation For My New Computer?

My new defrag program gave me a choice of batch defrag or defrag pagefile.Im brand new to the world of computers.Any suggestions?

How Can I Improve Graphics Speed For Games On My Computer Without Buying A New Graphics Card?

Can someone give me some tips on improving the graphics speed for the games on my computer without having to go buy a new graphics card? Just any tips other than buying a new graphics card. Thanks.