Pros and cons of 64bit vs 32bit Windows
Perhaps have a look at these questions:
- Whats the difference between 64 and 32 Operating systems?
- Other benefits of 64-bit OS apart from memory expansion?
- Should I install 64-bit versions of operating systems?
Aside from the capabilities, it's important to note that there are some compatibility problems with 64-bit Windows - certain applications and device drivers will not run on it.
I would just like to add disk usage difference between 32 bit and 64 bit Windows 7 installations (fully updated).
In my case that's
- 32 bit - 13.5GB
- 64 bit - 24.5GB