The original OEM product key allows you to move from a 32-bit Vista Ultimate installation to a Vista Ultimate 64-bit installation.

The product key OEM genuine original of my software to 32-bit with service pack 1 (that I bought and installed on my computer) allows to switch from a 32-bit Vista Ultimate installation to a 64-bit Vista Ultimate installation on the same computer without changing the motherboard?

I would use a replacement disc from Microsoft 64-bit including Service Pack 2 as complete a reinstall? Microsoft 64-bit replacement drive has been obtained from Microsoft with the 32-bit version (which is currently installed) after some intractable problems found by the Microsoft Tech support in my OEM 32-bit software with service pack 1.

I'll be able to do an online activation?

Thank you.

Hello

You should check with Support to be sure. Normally the 32-bit and 64-bit key can
be used on the same system. Of course, you need to install the 64 who will wipe away
the installation of 32-bit. The key you should however work to check better
with that which supplied the disc. The manufacturer of your system can also provide input.

I hope this helps.

Tags: Windows

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