A while back I purchased a computer that had Windows 8, I then upgraded it to 8.1 when the update came out.
Through work I have been given permission to us one of the MAK keys we have for 8.1 Pro/Enterprise, and trying to use "Windows Anytime Update" says I cannot upgrade using the key. I don't want to install over everything or upgrade using the install CD as it usually messes things up......
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