For reasons that are at present vague, Windows 10 Professional clients are finding that their legitimately authorized establishments are being deactivated.
On frameworks influenced by the issue, Windows is griping that a Windows 10 Home permit key is being utilized with a Windows 10 Pro establishment. To settle things, the framework should be wiped and Windows 10 Home introduced. Something else, a honest to goodness Windows 10 Pro key should be utilized.
Microsoft has recognized that the issue exists and that some unspecified issue with the Windows Authentication servers is causing the issue, yet up 'til now, there's no fix. The Windows 10 Pro licenses do appear to be legitimate, and some goals is guaranteed inside two or three business days.