How do you tell if you OS is 32-bit or 64-bit Tags: Control Panel RAM Windows XP Last response: February 18, 2009 1:32 PM in Windows XP Share husker92 February 18, 2009 1:26:59 PM I want to upgrade my system and I want to use my existing XP, but only if it is 64-bit (to use 4 GB of RAM). How can I tell if my current version of XP is 32-bit or 64-bit? I actually have two XP versions, Home and Pro, both are the 2002 versions. I looked in "system" from the control panel and it just says XP Home, 2002 version, but does not say wether is it 32 or 64 bit. Thanks for looking. More about : bit bit husker92 February 18, 2009 1:32:42 PM Nevermind, I found this archived post which tells me how (using winver). http://www.tomshardware.com/forum/50426-45-finding-wind... Note to self - do search first!!!!!! Can't find your answer ? Ask ! Publish Related resources No OS loaded how to tell if I bought 32bit or 64bit Forum How can I tell if I have 32bit or 64bit OS ? Forum How do i install os 64-bit on my laptop when i have 32-bit on my laptop Forum 32-Bit OS on 64-Bit CPU???? Forum E6550 32bit or 64bit OS ? Forum http://www.tomshardware.com/forum/ [...] ws-edition Forum 4GB on a 32-bit OS vs 4GB on 64-bit OS Forum How to change 32-bit to 64-bit in windows 7 Forum What specify 32bit and 64bit (CPU or MOBO)?? Forum Installing 32bit when running 64bit Forum Upgrading from 32bit to 64bit Windows 8 Forum 32bit to 64bit Forum Is a 64-bit Windows 7 quicker than 32-bit in itself, as an OS ? Forum Hard drive from a 64-bit OS PC readable on a 32-bit PC Forum How to Change win7 32bit to 64bit Forum Windows 7 32-bit to 64-bit CI.dll & clfs.sys ERROR Forum Install a 32-bit Windows 7 OS to a 64-bit Laptop Forum Windows XP Pro 32bit to Win 7 Pro 64bit Upgrade Forum How to can I check if my XP OS is a 32bit or 64bit ? Forum HELP!!! Please with Windows XP Forum More resources Read discussions in other Windows XP categories Configuration Customization Drivers Security Video !