Windows 7: upgrade from win7 pro 32bit to win7 pro 64bit with same licence

Hi,
I'm presently running Windows 7 Pro 32bit on an Intel Core2Duo 2.4Ghz 775 socket.

I've just purchased a i5 760 processor, an Intel H55 chipset Mobo, and 8GB of ram.

My copy of Windows 7 Pro 32bit was acquired through the college I was attending.
I have the installation disk and the license number.

When I reinstall Windows 7 Pro on my new set up, what do I need to do to make it a 64bit install?

I plan to use to the same installation disk and license number.

thanks
Mitch

You will need the 64-bit DVD for a clean install
Clean Install Windows 7

does this mean that as long as I use a 64bit Windows 7 Pro DVD for a clean install, I can use my existing license number to activate?

thanks!

Mitch

Not that I know of.
New OS new license.

If your still going to the school they may have other options. You state "WAS" going so even MS is probably of no help either.

Mike

You can use either 32- or 64-bit Windows 7 with each license, but only one at a time.

Ask your college tech support where you bought the student version to provide you with the 64 bit installer, or find one of any version to unlock all versions to install yours: Windows 7 Universal Installation Disc - Create