kashyap 99==> right click on my computer->properties and see if it says 64 or not..........................
Windows XP 64 bit.
Windows XP is almost NEVER in "64 bit". You have to specifically purchase XP 64 bit, as opposed to regular XP which is 32 bit. 64 bit processors will run 32 bit XP without problems, but you'll get a little more performance and some extra features (GUID partitions) on 64 bit windows. Once again - it's "always" in 32 bit, unless you go buy 64 bit.
Start>run and type winver and hit enter. If it days XP PRO 64 then you have 64 if it says XP Pro then you have 32.
Microsoft Windows XP 64 Bit Edition ?
XP Pro is a 32 bit OS that is made for single core processors. XP Pro 64 is a 64 bit OS that is made to be used on computers with at least a dual core processor.
XP Media Center Edition is 32-bit only.
Windows XP Profesional
Yes, except for Windows XP 64-bit and Windows Server 2003 64-bit with Itanium processors.
64-bit processing
64-bit processing
Yes.
Windows XP Professional x64 Edition