Windows 8 and 8.1 Forums


How to do a clean install over a preinstalled W8

  1. #31


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    @kmint That all in one, 16 in 1, is a modified ISO. The ISO's available from TechNet are referred to as "multi". They will install 8 or 8 Pro depending on what key ypu enter or what embedded key is found. The embedded key takes precedence over an entered key. If an embedded key is found you won't be asked to enter one and the version matching the embedded key is installed. As an example my laptop came with Windows 8 core. That's what gets installed if I use the TechNet ISO. I can then go to add features and upgrade to 8 Pro, which is what I did. I can then also upgrade to Media center after that, I did that too. Your upgrade install media won't use the embedded key because it is only upgrade media, and not the full retail media. It's likely rejecting the key on a clean install again because its upgrade media and is looking for a previously installed qualifying OS. If you can find a Retail ISO you should be able to do the clean install with the embedded key. The problem with that is there is no way to get it from Microsoft directly without a TechNet subscription. It's unfortunate but that's the way it is. If you know of somebody that has bought a full retail copy all you have to do is make a copy of their DVD and use that (with your embedded key). Or take a chance on downloading what is claimed to be an untouched TechNet ISO from bit torrent. That's a use at your own risk proposition. The MD5 hash codes are posted on TechNet and can be looked at without having a TechNet subscription. You just can't download anything without a subscription.

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  2. #32


    Madrid, Spain
    Posts : 228
    Windows 8.1 x64


    @alphanumeric Thanks a lot.
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  3. #33


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    No problem. The new way Windows 8 installs and activates is supposed to make it easier over the way Windows 7 did it. The kink in the whole thing is the actual physical install media. If you don't have it your stuck. If your hard drive is intact refresh and reset "should" work. If you do a hard drive swap not so much.
      My System SpecsSystem Spec

  4. #34


    Madrid, Spain
    Posts : 228
    Windows 8.1 x64


    Quote Originally Posted by alphanumeric View Post
    No problem. The new way Windows 8 installs and activates is supposed to make it easier over the way Windows 7 did it. The kink in the whole thing is the actual physical install media. If you don't have it your stuck. If your hard drive is intact refresh and reset "should" work. If you do a hard drive swap not so much.
    I sent you a PM. Thanks.
      My System SpecsSystem Spec

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How to do a clean install over a preinstalled W8
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