Will BIOS-embedded Windows 8 product keys cause reinstall troubles?
Summary: Will BIOS-embedded Windows 8 product keys cause problems for those wanting to upgrade -- or downgrade -- their copy of Windows?

Those purchasing Windows 8 PCs are noticing that the small "Certificate of Authenticity" that is normally home to the product key is missing, and instead a "Genuine Microsoft" label has replaced it.
This seems to be a cause of concern, and is prompting a number of questions.
Rather than using a sticker, PC manufacturers are instead embedding the product key -- associated with a fingerprint of the hardware -- into the BIOS/UEFI firmware on the motherboard. This is part of Microsoft new OEM Activation 3.0 (OA 3.0) mechanism and has been designed to combat piracy and, according to my OEM contacts, makes it easier for OEMs to order new keys from Microsoft, and even return unused keys back to Microsoft.
But what does it mean to the end user?
To most people, nothing. Windows is activated and should run normally. If, for any reason, you need to reinstall Windows 8 from the recovery partition or recovery discs, then the setup should recover the product key from the hardware, making it a lot less of a headache than having to read a string of tiny numbers off a sticker located somewhere awkward on your desktop or notebook PC.
But what happens if you want to upgrade Windows? Does this BIOS-embedded product key mean that you're stuck with whatever version of Windows that was installed on the hardware when it left the factory?
Of course not.
Windows 8 users can upgrade to Windows 8 Pro either using the "Add features to Windows 8" feature baked into the operating system, or using a retail copy of Windows 8 Pro (which is a far more expensive way to upgrade).
Commercial customers can also use volume license product keys and volume license media to upgrade hardware.
But what happens if you hate Windows 8 or Windows 8 Pro and want to nuke it and downgrade? Will the BIOS-embedded product key cause problems? No, it won't. As long as you have the relevant media, and a valid product key, you can install an earlier version of Windows -- or Linux -- onto the hardware without any problems.
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Talkback
BIOS-embedded product key
nice try..
Suppose you want to reinstall Windows 8 after downgrading?
I remember this girls recovery partition was gonna wipe out her installation with her personal files which she wanted to keep. I decided to use a retail disc which corresponded with the edition she had installed and did a custom install over the system partition where Windows 7 was installed. This ended up rendering the recovery partition inoperable.
Something to think about before considering a downgrade. At a minimum, create a backup system image of the entire Windows 8 installation.
If you don't delete the partition during setup,
What if your motherboard needs replacing and takes the product key with it?
Options
If it's a system-builder PC (HP, for example) you are tied to an OEM product key.
If the motherboard is replaced by HP or by the end-user using genuine HP parts, it is up to HP to get you a working product key. End-user replacement would require sending in the old motherboard, of course.
If you replace the motherboard with a non-HP board, then you need to buy a new product key.
.... shhhh
Wait...
The point of the article is that you won't know the key yourself, anymore
I was kinda on the fence about Win8 before, but this is el colmo. NEVER AGAIN.
@ brainout
OEM Keys...
Dual boot?
What about upgrading the bios /uefi
Not really
Thoughts
As far as older OSs, they won't know to look into the BIOS to get a serial number.
Reinstalling [or dumping the image] onto a Win 8 machine that was downgraded shouldn't have much effect either.
A future Win 9 will see they key and ignore it because it detects it as a Win 8 key [unless you need it for an upgrade].
Install Windows Server 2012 on a HP 3500 Pro with fails (Windows 8 Key in B
I have contacted HP how i can deactivate the Product Key, but the have any solution.
Do you have some idea how i can install the Windows Server 2012? It has some installationoptions for Windows Server 2012?
Thanks for your help.
2012 Server install issue..
RE-Install the same version using OEM media & Activation
I've made a mess! Is it fixable?
I've just bought a laptop from Samsung with Windows 8 pre-installed.
When using it for the first time (no internet access) it wasn't activated.
Talking to the custumer servisse at Samsung didn't help much (it seems they have VERY little knowledge about this activation process - didn't even check with me if I was online or not. They asked me to re-install the Windows using the recovery partition. I did it and since no internet was ON, it was still deactivated. Then they asked me to re-install it using the WINDOWS (settings/general/reinstall) which took around 3hrs to complete and then the sistem wouldn't start anymore, nor the recovery partition start-up option.
So, they told me to send it back to be repaired (which would take them around 30days to send it back to me), which I declined (It was supposed to be a Christmas gift anyway.
Not knowing anything about this "bios key", I just got my original Vista(32x) media and deleted the GPT partition thing, recreated the mbr and installed Vista 32. But it doesn't activate.
Are you still there????? moving on...
So, I spent some more Money and bought myself the WINDOWS 8 x64 SL OEM media.
the following is what I intend to do:
using a SEAGATE software, i will fill the HD with zeros (which should destrói all the partitions and data (already backedup).
using s PARAGON cd, i will change my HD from MBR to GPT (leaving the whole HD unnallocated)
using the OEM MEDIA, install Windows 8 without formatting anything (hope it creates those MSR, EFI...partitions by itself)
1) can i go through with all these steps? if not, how should i proceed then?
2)will I be promped to insert the product key during installation? if so, which one? (There's the one that came with the OEM media - written on a COA-like sticker (which has "this is not a coa" written all over it) and the one I got using the RW-Everything software (i guess this is the one inside my bios). Or should I just skip it when asking for the key (it would check the bios one itself and activate the system whem I am online)?
one last question: IS EVERYTHING GONNA BE ALLRIGHT IN THE END??? PLEASE, SAY IT WILL!
PS. SORRY FOR MY ENGLISH (I'M FROM BRAZIL - PORTUGUESE IS MY NATIVE LANGUAGE)
THANKS IN ADVANCE FOR AT LEAST READING THIS.