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Can I dual boot Win7 32bit and 64 bit with the same SN#?

Last response: in Windows 7
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October 24, 2009 5:25:36 AM

I got my Win7 upgrade to Vista 32 bit installed today- it came with both versions. Will MS let me register the 64bit version if it lives on the same machine with the same SN#? I guess I could try and find out- but wanted to ask before spending time partitioning drives and running the install.
a c 215 $ Windows 7
October 24, 2009 5:35:38 AM

In reality, there's nothing stopping you from doing it, but technically you are only supposed to have either 32 or 64 bit installed on one PC at a time.
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a b $ Windows 7
October 24, 2009 6:17:12 AM

If you are worried about something not working under 64 bit, why not keep the Vista 32 bit instaltion intact and install the W7 64 bit upgrade to a new partition.
You will need to use the Custom instalation for the 64 bit either way.
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October 24, 2009 5:41:58 PM

The_Prophecy said:
In reality, there's nothing stopping you from doing it, but technically you are only supposed to have either 32 or 64 bit installed on one PC at a time.

^yep, you can only go full 64 bit or full 32 bit.. not both though =[
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October 31, 2009 1:16:29 AM

rambo117 said:
^yep, you can only go full 64 bit or full 32 bit.. not both though =[


I tried installing 64bit on a new partition, but after it went through set up and file copying phase, it re-booted right back into my 32 bit install without option for "select which OS would you like to boot"- it would not continue installation process.
There might be a hack, but it's not something Microsoft provides for "out of the box".
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