How can i determine what version of windows was used o installation?

I have windows xp pro installed but dont have the disks and am trying to find out what type of disks were used(retail, oem, ect...)

any ways to tell?

How can i determine what version of windows was used o installation?nintendo ds browser

Right-click My Computer, properties. Hope this helps...

How can i determine what version of windows was used o installation?windows 98 internet explorer

Did you buy the PC with XP already installed? If so then you'd probably have OEM - the easiest thing to do is look on the bottom of the PC and see if there is a label that reads "Windows XP Professional OEM" anywhere, with some numbers on it. If you have that label, that's your certificate of authenticity, which means it was pre-installed with an OEM version.

If you don't have that, then you probably had a retail version which had a box and disks.

Hope this helps!