"If you need to repair PCs, even if you don't use Linux as a
rule, you should have a Linux repair CD. These self-booting Linux
distributions give you all the software tools you need to bring all
but the deadest computers back to life. The best of these
distributions is, hands-down, SystemRescueCd.
"I've been using SystemRescueCd for years, and it has saved my
rump many times. With every new version, SystemRescueCd has
continued to get better..."