Microsoft has announced that it is ending support for Windows 2000 and Windows XP SP2 on July 13th of this year. Microsoft usually offers support for its products for five years with an additional five years of extended support after. Well, for Windows 2000 and XP SP2, that time is coming to an end this July. Microsoft will continue to offer self-help online support for an additional year, but all other forms of help will be discontinued. That means no more security updates will be launching for either OS.
For users of Windows 2000, you can upgrade to Windows 7 if you are using a desktop. If your server is running 2000, feel free to upgrade to Windows Server 2003, 2008, or 2008 R2. You can continue to use Windows 2000 just you will not have any help or updates.
For users of Windows XP SP2, you can upgrade to Windows 7 or simply download SP3 which will still be supported. Many businesses will probably just upgrade to Windows 7, but I am sure there will be some people who just download SP3 as the simple solution.