64-bit Windows 7 or 32-bit Windows 7? (InfoWorld)
Here is a great article on when deciding on going from a 32 bit OS environment to a 64 bit OS environment. I moved to 64 bit version of windows vista two years ago, and I will NEVER go back to a 32 bit OS again, unless its running virtually on my 64 bit OS for development testing of releases for clients still running 32 bit Windows XP or Vista.
One recommendation Is do not upgrade a 32 bit OS to a 64 bit OS. You will need to back up your files, and do a complete fresh install. Make sure all your software can run on a 64 bit OS. Most 32 bit applications I have installed on my 64 bit OS worked fine, except older versions of Adobe Acrobat, which I did upgrade and received the 64 bit version.
Speed…Running a 64 bit application on a 64 bit OS is super fast, and running a 32 bit app on a 64 bit OS is faster too. Its like when we upgraded from a 16 bit OS to the 32 bit OS back in the Mid 90s. I like speed, and very soon the 32 bit os will be gone, just like the 16 bit.
However, I am a software developer writing enterprise software and when you compile large applications I like it done Fast! I feel that speed is number 1 followed by everything else when using any computer. If your computer is slow and a 64 bit OS would speed things up, I would suffer through the setup for a few hours, but do it right. My 64 bit OS replaced a 32 bit OS with no hardware updates and it is twice as fast. Plus this computer came with 4 GIG of ram which the 32 Bit OS couldn't use, and I am sure there are millions of PCs out there in the same boat.
Anyway enjoy the article and have fun with Windows 7!