If you run WinXP pro, there's a feature called Automated System Restore that you can use, In 2000 you rebuild and then restore the system State from a CD or whatnot.
If your using Win9X, ME or NT, I think you might have to use Ghost or an alternative, such as Acronis TrueImage 8 or Paragon Drive Backup.
A+ Core Hardware, Software Certified (May 13 2005)
the new beast...
AMD Athlon XP 3200+ Barton running at 2.16 Ghz.
GeForce MX 4000 (mainly takes the load off the main system)
Creative Labs Audigy 24-bit sound.
Some Case from tigerdirect
512 MB Ultra DDR RAM.
80GB Seagate HDD
LiteOn CD-RW / DVD ROM drive.
currently looking at a litescribe drive at staples, due to its ability to label the CD shortly after being burned.