64bit AND 32bit?

Am planing to change my system for 32-bit to 64-bit how shall i know that my system is compatable to it? will it work,? and after i upgrade will my data get errased or will it still be der? let me kno how to find out the way to know my system is compatable to it or not.

I got a new laptop and its 64 bit, i was wondering is it possible to install both a 32bit XP/Vista/7 partition with a 64bit 7 partition as well? I know i have to install the older os first after wiping the drive if i choose xp or vista. Never had a 64bit computer before and i knew i couldn't use 64...

I have a product called Parrot minikit smart for my car but it only works with Windows 7 32bit and the 2 laptops we have are both 64bit. Is there a way to get it to work on a 64bit PC or am I pretty much out of luck?

Hey guys well i have an asus p5lp-le yea i knoe its not much. Motherboard Specifications, P5LP-LE (Leonite) - HP Customer Care (United States - English) There the link thats my motherboard My question about is that how many GB of ram does each socket support because i currently have a 32bit...

OS: Win 7 64bit. Is it generally not a problem to choose to install a piece of 32bit software outside the win 7 default program folder for 32bit software? Or is 32bit software only supposed to be running flawlessly, if installed in that default 32bit folder? Thanks.