Windows XP Support Ends: Update to Windows 8.1
Naturally, Microsoft was really hoping you would install Windows 8.1 when it ended Windows XP support. If your PC supports the latest operating system, this is probably the cheapest option given that Windows 8.1 retails for $120.
Not sure if your Windows XP computer is capable of running Windows 8.1? Microsoft has published a list of minimum specs on its Windows XP support page and included an upgrade tutorial.
If you bought the computer any time in the last few years, it should be more than capable of running the latest OS. An older machine might be technically capable of going through this Windows XP update to Windows 8.1, but performance might not be up to expectations.