Windows could not parse or process the unattend answer file for pass specialize

Somebody at work got this error when trying to rebuild a PC with Windows 7 with a new install that I had created. It appeared in a pop-up.

So what was the reason? Simple, it was the wrong product key in my answer file.

So I just changed the product key to the correct one. Then there were no more problems.

I made a link to all the KMS server product keys at Microsoft in my earlier post.