No valid Microsoft OS Key

I would recommend steering clear of this seller. We purchased three refurbished computers, and the windows OS key didn't work on any of them. We spent hours going round and round with the seller, who kept saying it wasn't their issue and referred us to Microsoft. Microsoft said the keys were not valid. It got to the point where I was simply tired of fighting with the seller to get this resolved. We are taking the loss and moving on.

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