The end is near for Windows Vista - what you need to know:
Bottom Line: It's probably safe to say that Windows Vista wasn't Microsoft's finest OS. As a result it wasn't the most popular. The current OS stats demonstrate as much. Just 1% of all active computers are using Vista, so the odds are that you aren't going to be significantly impacted by this but if you are still operating a computer on Vista - this is important to you.
Microsoft is ending support to Vista on April 11th. That means that it'll be susceptible to hackers who try to crack into the OS. If you're operating a computer online with Vista and that occurs, you'll be vulnerable regardless of other security measures you may take. Any legacy machine that's operating on Vista won't be capable of taking a newer OS update. So you'll need to do one of two things or both. If you want to keep the computer, you'll need to take it offline going forward and you'll need to replace it by April 12th.