Use the Windows key + Pause Break key to open the System Information window,
at the top of the page you will see whether you have a 32 or 64 bit version
of Vista installed.
Alternatively, you can click Start > right click 'Computer' and click
Properties to access the System Information explorer.
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.