3 easy Linux alternatives for Windows XP refugees who don't want a new PC

Windows XP's refugees have two choices on April 8, when Microsoft stops supporting the decade-old operating system (for consumers, anyway). This is assuming a new PC with a new operating system (even Windows 7) is, for whatever reason, out of the question. They could cling desperately to their old Windows XP system and face what could be a hacker feeding frenzy, something we don't recommend even if you take precautions. Or they could keep the old PC but install a new, free, and safe operating system--otherwise known