(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.
Try using modern hardware or software on Windows 98, Windows Me, or even Windows 2000 — even Firefox no longer supports Windows 2000. Perhaps you’ve heard about how awkward Windows 8 can be on traditional computers — If you’re using Windows XP, we’re assuming you’re not using one of Microsoft’s Windows XP tablets.
Running Windows Update ensures that your PC has the latest security patches and changes to XP, and it gives you the opportunity to install optional drivers and software.
If you’re running Windows XP on a network, it’s possible that your network security settings could stop you from using the Windows Update feature.
Windows XP won’t be officially supported for much longer.For Windows XP to Windows 7: If you're used to XP, then upgrading to Windows 7 is probably less of a shock than going from XP to Windows 8.1. For Windows XP to Windows 8.1: "Windows 8.1 isn't designed for installation on PCs running Windows Vista or Windows XP," Microsoft warns on its upgrade page.Basically, Redmond would much prefer you just buy a new Windows 8-based PC.Sure, you could keep using it — it won’t just stop working one day.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.