Upgrading Windows 10 Home to Windows 10 Pro?

Discussion in 'Windows 10' started by sjmike, Apr 12, 2016.

  1. sjmike

    sjmike MDL Novice

    Jun 8, 2010
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    I was reading here that you can use a Windows 7 or 8.1 Pro key to upgrade to Windows 10 Pro, but I just tried with a Windows 8.1 Pro key and it gives me an error message. Trying to avoid purchasing the $99 upgrade.

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