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 SolvedUrgent! Is This Windows 64bit or 32bit (how can I tell before buying!?) Forum Solvednow can some one tell me how big of a hard drive..widows 7 16 GB available hard disk space (32-bit) or 20 GB (64-bit) Forum SolvedHow to determine whether my OS is 32-bit or 64-bit Forum How do I remove a ram cap on Windows 8.1 64-bit based processor but 32-bit OS without reinstalling windows? Forum how do I re install my win 7 64bit which was changed to a 32bit os Forum How do i install os 64-bit on my laptop when i have 32-bit on my laptop Forum How to change 64bit to 32bit on win 2008 server os Forum How to can I check if my XP OS is a 32bit or 64bit? Forum Solved32-bit to 64-bit OS Forum SolvedTurning My 32-bit OS to 64-bit Forum SolvedAny way to make my 32-bit SP3 OS, 64-bit? Forum SolvedHow to fix mistake of installing Windows 8.1 32bit instead of 64bit? Forum Index scoring between 32bit and 64bit OS Forum Solved32bit drivers on a 64bit os? Forum Solvedhow to convert 32bit to 64bit windows 8.1 Forum SolvedCan i use 32-bit OS in 64-bit Intel p6200 processor laptop Forum SolvedWhy would Asus install a 32-bit OS on a 64-bit system? Forum Microsoft Office Basic 2007 32-bit Install on Windows 7 Home Premium 64-bit OS. Forum More resources Read discussions in other Windows XP categories Configuration Customization Drivers Security Video !