Upgrading of Windows 7 32bit to 64bit

[tttt1010]

I know that one copy of windows 7 can only activate one computer. I have two, one already with windows 7 32bit installed and one without windows 7. I plan on buying a new one, installing windows 7 on my second computer and upgrading windows 7 to 64bit on the other. If I upgrade, will windows use the old activation key or require me to enter a new one, because that computer came with windows 7 32bit so I don't have the disc.

 

[Bill2]

You cant "upgrade install" from 32 bit to 64 bit, you'll need to clean install windows. You need to find a 64 bit disk, backup all your important files, then clean install the SAME edition that came preinstalled, then activate using the key on the STICKER on the computer. Keys are architecture neutral- the same key will activate either 32 bit or 64 bit but you can only use it once.