Quite simple:
For windows 7, click left button on "my computer" and choose properties.
Under System, find system type and it will tell you whether you're using 64 or 32 bit.
Let me know if that helped, and please don't forget to give me a thumbs up if it does.
Raider_retired 3_29_
Thank you Volcan for your vote on one of my answers. Here is a thumbs up vote for you.
papagreg
Volcane
Thank you Volcan for your vote on one of my answers. Here is a thumbs up vote for you.