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Windows 7: install says my product key is invalid

22 Oct 2009   #11

windows7 RC

I think setup does check for a windows installation when setup first starts. You can still format or delete that partition within setup to have a nice clean blank PC for win7, but this is treated differently than installing to a completely blank non-partitioned drive. Please see my posting here:

Doing a Clean Install with a Upgrade Windows 7 Version

My System SpecsSystem Spec
19 Dec 2009   #12

Win 7 x64 Professional

Talk about dumb, and a waste of time. I just had the same thing. I installed the student download version of Home Premium onto a Laptop that had Vista, but whose drive had failed. So the laptop had a new, blank drive.

The product key failed.

I had to reboot from the DVD, delete the already installed Win 7 partition, and install it again. Then the product key was accepted.

Thanks to above for the instructions as to how to get around this annoyance.
My System SpecsSystem Spec
19 Dec 2009   #13
Microsoft MVP


Run a Repair install from the new desktop. A repair install is an upgrade over itself in Win7. This will make the installer think there is a previous qualifying OS and allow you to insert the key.

Otherwise wait til after intsalll and insert key at Computer>Properties link.
My System SpecsSystem Spec


 install says my product key is invalid

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