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32 to 64 bit?


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#1 Willabong

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Posted 31 August 2015 - 07:38 AM

I run a 64 bit system with a 32 bit OS (windows 7) ... I upgraded to Windows 10 (32 bit).

What I want to do is a clean install of Windows 10 (64 bit) on this system. 

I have the Windows 10 (64 bit) iso saved to disk, as I installed the 64 bit version on my laptop.

 

My question is, can I do a clean install of the 64 bit version of Windows 10 on the above PC, and will it be accepted and register correctly?

 

I don't expect many replies to this question as it is an unusual request. But any advice would be welcome? 



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#2 Aura

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Posted 31 August 2015 - 07:55 AM

Hi Willabong :)

To answer your question: yes it's possible to clean install Windows 10 64-bit on your computer. If you want to clean install Windows 10 on a computer using a product key from Windows 7, 8 or 8.1, you need to upgrade that computer to Windows 10 first, and then you'll be able to clean install. Therefore, you can grab your product key (or you don't need to if you have a computer that came with Windows 8/8.1 where the product key is embedded in the BIOS) and proceed to clean install Windows 10 normally. :)

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#3 amarkkassery

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Posted 31 August 2015 - 07:56 AM

As long as your version is the same (Home/Pro), there shouldn't be any issues doing this.

 

Do let us know, if you face something down the road.

 

Good Luck!



#4 amarkkassery

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Posted 31 August 2015 - 08:01 AM

Hi Willabong :)

To answer your question: yes it's possible to clean install Windows 10 64-bit on your computer. If you want to clean install Windows 10 on a computer using a product key from Windows 7, 8 or 8.1, you need to upgrade that computer to Windows 10 first, and then you'll be able to clean install. Therefore, you can grab your product key (or you don't need to if you have a computer that came with Windows 8/8.1 where the product key is embedded in the BIOS) and proceed to clean install Windows 10 normally. :)

Actually, you don't need to worry about your product key. Important system information gets saved on Microsoft's server once you successfully complete an upgrade. (You might also need to wait a few days.) Just leave the key empty when you try to reinstall, and activate Windows, without worrying to enter a key. There is a new key for Windows 10, and neither a Windows 7 nor Windows 8.1 key will work with Windows 10 installation. You might be able to find what your Windows 10 key is (after you upgraded) with a tool like this. But again, you DO NOT need to enter a key when you reinstall Windows 10, as long as no key hardware (Motherboard, HDD (or SSD) has changed.



#5 Willabong

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Posted 31 August 2015 - 11:32 AM

My thanks to both of you!  I will try the clean install of Windows 10 (64 bit) soon, and will post the result here!



#6 orlbuckeye

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Posted 31 August 2015 - 11:46 AM

I don't think it will work because the upgrade of the 32 bit Windows 7 activated 32 bit Windows 10. Windows 10 64 bit hasn't been activated on that machine. OEM Windows 7 32 and 64 bit are purchased separately. Now retail Windows 7 comes with both 32 and 64 bit.  My guess is it won't work. I was also guessing your using OEM.


Edited by orlbuckeye, 31 August 2015 - 01:06 PM.

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#7 Aura

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Posted 31 August 2015 - 11:53 AM

For OEM it won't work, no. For retail, it will.

https://answers.microsoft.com/en-us/windows/forum/windows_7-windows_install/windows-7-pro-oem-32-bit-64-bit/279a9ccb-a1dd-493c-ad27-6496353f7395?auth=1

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#8 Willabong

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Posted 31 August 2015 - 06:13 PM

It was a retail version of Windows 7 ! I have both 32 bit and 64 bit versions.


Edited by Willabong, 01 September 2015 - 04:03 AM.


#9 Aura

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Posted 31 August 2015 - 06:40 PM

Then you can use the same product key to install Windows 10 64-bit.

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#10 Willabong

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Posted 01 September 2015 - 04:31 AM

Thanks Aura!



#11 Aura

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Posted 01 September 2015 - 05:16 AM

No problem, you're welcome :)

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#12 panthera0404

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Posted 01 September 2015 - 05:19 AM

it does work. I had windows 8.1 64 bit, upgraded to win 10 64 bit.
Computer was slower, so i decided to do clean install.
First i accidentally downloaded 32 bit iso of windows 10, and install it. Windows was activated normally. When i realize my mistake i download 64bit, do clean install again and it was activated normally. So it does work.


#13 Aura

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Posted 01 September 2015 - 05:20 AM

panthera, do you have an OEM or retail product key for Windows 8.1?

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#14 panthera0404

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Posted 01 September 2015 - 05:51 AM

upgrade key, i think. i had windows 7 and bought windows 8 upgrade key for 15$ when win 8 came out. i couldnt do clean install of windows 8, i always had to install windows 7, and then upgrade to windows 8. so i think it is upgrade key.



#15 Aura

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Posted 02 September 2015 - 08:29 AM

So I guess that upgrade keys count as "retail" and not OEM.

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