Ted put Linux on an old Vista Machine, but when he went to use the app Turbo Tax online, it said that it wouldn't support Linux. Leo says to try the Chromium browser in Linux. It's more open source. But being a standard web app, it should work regardless. Is it secure? Leo says it is, but it's not 100% flawless. It does have the benefit of being obscure, though. Hackers want to go after the most people, and open source is such a small segment that it's relatively off their radar. Certainly more secure than Windows Vista.
Eric would like to put ChromeOS on an old PC. Can he do that? Leo says there are some ways to do it, but they really aren't that easy to do. He could install Chromium OS using NeverWare's CloudReady. It won't work on all computers, though, so he should read carefully what computers it supports. Another option is to put Linux on it. Xubuntu or Zubuntu could work.