Colby wants Linux to put on an old Windows XP machine before April 8th. Leo says Ubuntu is great for an XP machine. However, as long as he practices safe computing, works as a limited or standard user, and avoids suspect links, it's possible to still be online safely with Windows XP even though it won't be updated. If he wants to check out more Linux distributions, he can visit DistroWatch.com. He should look for ones that are made for older systems.