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COA for which version?

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Nov 16, 2007
Twin Cities MN
I have a COA lable from a dead laptop. But the part that tells what version of windows that the COA is for is gone. (It was already rubbed off before removing label. Label was where a finger rubbed...)

Like an automobile VIN number, Can the COA code cross reference windows verson?


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Sim Racing Aficionado Co-Owner
Jun 28, 2012
I don't know of a way to tell from the product key, but if you give us the laptop's model number it might be apparent.

That said, it looks like it should be a Windows 7 key, there are only a handful of versions of 7.
Most on personal laptops were Home Premium, IIRC.