Updating windows me to xp
We’ve already explained why it’s time to let go of Windows XP and what will happen when Microsoft finally stops supporting it on April 8, 2014. It doesn’t support modern hardware properly and it isn’t as secure as modern versions of Windows because it doesn’t have User Account Control and other modern security features.
(Forget what you may have heard about UAC in the Windows Vista days — it’s better now.) As time goes on, Windows XP will become increasingly insecure and both hardware and software vendors will stop supporting it.
Thankfully, although Microsoft has long since abandoned support for the operating system, Microsoft is still continuing to develop updates, even if they aren't strictly intended for Windows XP users.
Rather, Microsoft is continuing to support Windows Embedded Industry for another five years until April 2019.
Before you start following any of the instructions here, or perform an update using this trick, back-up the Registry.
Go to Start, All programs, System tools and run System Restore.
For safety, then, we recommend that you back-up your computer, so you can restore data in the event of a problem.
It will just become more insecure over time as Microsoft and everyone else stops supporting it. It has been officially supported for more than a decade.