"recovering" Win7, after replacing original mobo

My failed original HP mobo was an Asus, for which I had Vista system recovery discs. I used the Vista discs as a 'base' from which to install a Win7 upgrade just a month or so before the mobo died.

Now, my replacement board happens to be an Intel, and I am using my original CPU. Boot-up is fine and was relatively easy (to my surprise, since this is my first such project). But I hadn't foreseen problems with reloading Win7.

Sure enough, the Win7 upgrade discs don't work alone to get me back to that OS, and I guess this is because they're looking for an existing Vista installation as the 'base' (keeps telling me the product ID number is invalid). So of course next, I tried starting with the Vista recovery discs - but those apparently also get rejected, and I suspect that's simply because they're looking for a machine ID from the original HP/Asus, and not my new Intel mobo.

So what's my least-painful, lowest-cost way back to having Win7 again? Is there an easy workaround? Need I buy a new Vista package to upgrade from, just because my old mobo failed? Is there a chance to beg MS to give me some kind of waiver/product code to use to bypass the old Vista installation, considering that I'd already 'paid' for Vista through my original purchase and Win7 via a more recent purchase, and it's just the hardware failure that now leaves me stranded?

And wouldn't Intel normally provide at least some form of usable OS with the replacement mobo package, even it it happened not to be one that I wanted?
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More about recovering win7 replacing original mobo
  1. Since you can't do a double-install, you can try the registry edit method detailed in the following article:


    Here's another tutorial:

  2. Thanks, src - I scanned through that first link, but really just came back here to say I'd figured this out on my own.

    Essentially, 40 minutes on the phone with a very helpful MS tech (1-800-936-5700 at this writing) and with just one phone transfer involved, got me through the validation process. They verified my valid Win7 upgrade package number, then (and without asking about details of my hardware replacements - some posts seem to indicate that a new mobo means you're out in the cold in terms of getting an OS to work) the tech set up an online transfer of some kind of authorization number, which then allowed my PC to activate Win7 officially and 'forever.'

    About half of the phone time was taken up by repeated rebooting in the process of figuring out why it appeared my PC was each time hung on the initial 'Intel' screen - apparently solved by removing the USB flash-drive that I'd had to use to install modem software to begin with in order to get online with MS to begin with.

    And now, hours of software downloads and reinstallation await...
  3. Glad to hear it worked out without too much hassle - all things considered it sounds like 40 minutes well spent! Who say IT phone techs don't have souls???!!! :wahoo:
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