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Windows 7: Can use same product key if upgrade windows?

31 Oct 2012   #1
OneDarkLord

MS Windows 7 Ultimate 32-bit SP1
 
 
Can use same product key if upgrade windows?

Currently i use Windows 7 Ultimate SP1 32bit (up-to-date & genuine license),and i want to upgrade it to Windows 7 Ultimate 64bit,is the current product key that i use will work after upgrade or i will have to get new?


My System SpecsSystem Spec
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31 Oct 2012   #2
marsmimar

Microsoft Community Contributor Award Recipient

 
 

According to Post # 5 by gregrocker in a previous Forum thread, you cannot upgrade from a 32-bit OS to a 64-bit OS. It must be a clean install. However, the same Product Key can be used for either the 32-bit OS or the 64-bit OS if they are the same version (Pro to Pro, Ultimate to Ultimate, but not Pro to Ultimate.)

Use 32-bit product key for 64-bit Windows 7?
My System SpecsSystem Spec
31 Oct 2012   #3
Golden
Microsoft MVP

Windows 7 Ult. x64
 
 

^100% correct. Unfortunately, you must do a clean install of Windows 7 to go from 32 to 64 bit.
My System SpecsSystem Spec
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31 Oct 2012   #4
OneDarkLord

MS Windows 7 Ultimate 32-bit SP1
 
 

I have OEM (COA) product key,from what i read it can be used only on 1 PC,so how to deactivate it before installing the 64bit OS?
My System SpecsSystem Spec
31 Oct 2012   #5
marsmimar

Microsoft Community Contributor Award Recipient

 
 

There shouldn't be any issue because it's the same OS just a different bit-ness. But if it doesn't activate you will have an option to use the telephone activation method.

Activate Windows 7 by Phone
My System SpecsSystem Spec
31 Oct 2012   #6
Golden
Microsoft MVP

Windows 7 Ult. x64
 
 

How to do a fresh install of an OEM Windows 7:
Clean Reinstall - Factory OEM Windows 7
My System SpecsSystem Spec
07 Nov 2012   #7
OneDarkLord

MS Windows 7 Ultimate 32-bit SP1
 
 

Ok so i have now Windows 7 Ultimate 64bit,now how to install it? xD
When i try to run the setup file i get error: http://oi45.tinypic.com/2vtr0xu.png
I guess i need to uninstall my current OS?,how? xD
My System SpecsSystem Spec
07 Nov 2012   #8
Golden
Microsoft MVP

Windows 7 Ult. x64
 
 

Read the tutorial posted in reply #6 - everything is in there.
My System SpecsSystem Spec
08 Nov 2012   #9
OneDarkLord

MS Windows 7 Ultimate 32-bit SP1
 
 

I get error during booting "Incorrect system file/disk" asks me to put correct disk,can't install..
My System SpecsSystem Spec
08 Nov 2012   #10
Golden
Microsoft MVP

Windows 7 Ult. x64
 
 

Describe the steps you have followed so far.
My System SpecsSystem Spec
Reply

 Can use same product key if upgrade windows?




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