64 Bit Key Code Will Let

So I have to download the Windows 8.1 installer from Microsofts Upgrade Windows with only a product key page and then run it.

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Its unfortunate but the other download you mentioned wont except OEM keys.

The ISO he listed is the official ISO whats available on TechNet and MSDN.

You cant download from TechNet or MSDN without a subscription but you may be able to find it though other means.

64 Bit Key Code Will Let

The SHA1 code will let you confirm that your ISO hasnt been altered.

Im wondering if I can use it to initiate a clean Win 8.1 install on an OEM machine, that had v 8.0 on it, that was upgraded to v8.1 with the free upgrade from the MS Update site, without having to use my retail product key It sounds like (according to genet), that the BIOS will detect the Product key from the original WIn 8 install and use that key.

That is what I want to happen, because I dont want to waste my fresh win 8.1 Pro key that I just bought to use on another system.

The only difference in my case is that my OEM machine had v8.0 on it, instead of v8.1 from the factory.

But maybe when I updated it to Win 8.1 with Windows Update, it may get a new key stored in the BIOS.

Or maybe when I go to install v8.1 Pro, it wont let me, because its the wrong version, even though it matches the latest installed version, thanks to the free update.

Im wondering if my Win 8.1 Pro version will install as the non pro version when the OEM BIOS recognizes that it has a key already.

On the other hand, how would the OS or BIOS know, what I wanted to do.

Maybe I really want to install Win 8.1 Pro as a fresh install, to avoid having to do a bunch of updates or because I actually want to upgrade to Pro Maybe if I pay Microsoft the additional money to upgrade to Pro before upgrading my hard drive, then the BIOS may get the message that I am licensed for the Pro version and allow me to install it and keep the OEM key, and allow me to save my retail key.

Youll have to do this, My TechNet ISOs are multi edition and can install Core or Pro depending on what product code you enter during setup.

If you downloaded 8.1 Pro from here, it may not except a Core key.

Enter a Core key and you get Core, enter a Pro key and you get Pro.

Could you let me know what works and what doesnt for future reference please.

It says- This product key cannot be used to isntall a retail version of Windows 8.1 I want to re-install Windows 8.1 OEM version on the same laptop.So is there any alternate to reinstall the windows.Reply ASAPThankyou.

My SSD died on Saturday (going back for warranty replacement) Other Windows 8 images ask for product key, hopefully 8.1 works as Acer informed me it should be in bios.

Thanks Ill have a search tonight Its a pain not having recovery disks.

If I use my 8.1 ISO it ignores the BIOS key and prompts me to enter one.

The other thing that can mess you up is if the original factory install was a Single Language version.

Windows 8.1 64 Bit Key