Windows XP A to Z - http://www.softwaretipsandtricks.com/windowsxp
Does my computer have 32-bit or 64-bit Operating System (Vista / Windows 7)?
http://www.softwaretipsandtricks.com/windowsxp/articles/980/1/Does-my-computer-have-32-bit-or-64-bit-Operating-System-%28Vista-%7B47%7D-Windows-7%29%3F
Super Admin
 
By Super Admin
Published on 03/11/2010
 
Find out what bit your Operating System is.

Does my computer have 32-bit or 64-bit Operating System (Vista / Windows 7)?

1. Right Click Computer
2. Properties
3. Under "System" see "System type"

Will be "32-bit Operating System" or "64-bit Operating System".