Every PC is different and some have different versions of Microsoft’s Operating Systems, but how do you tell which one you have? Each operating system has a different look. If you simply follow the steps in the link above (the title) you will go to a page that tells you how each system works — that way you can figure out which system you have and whether or not you have Windows XP, which loses its technical assistance April 8th.
Windows Operating Systems:
1. Windows 8.1 or Windows RT 8.1
2. Windows 8 or Windows RT
3. Windows 7 or Windows Vista
4. Windows XP (no longer available after April 8th)
The link is also below: