Your new computer has a 64-bit processor, but your software probably is still 32-bit. Why haven't software developers done more about it?

Windows tells you whether you have a 32-bit or 64-bit operating system. In addition to noting the type of OS you’re using, it also displays whether you’re using a 64-bit processor, which is ...

FInd out how to clean uninstall 32-bit Microsoft Office & install 64-bit. This version is better if you have 64-bit computer & work with large data sets daily.

Should I use 32 bit or 64 bit? I'm only using 2 GB of RAM (and I think it only supports 4 GB at the very most) but it does support 64 bit. I've installed Windows 7 x64 and it seems quite a bit ...