Microsoft have already withdrawn it Windows 10 October 2018 Update (version 1809), but the errors still occur. For example, there have just been reports of disabling the operating system.
Yes, after installation of Windows 10 October 2018 Update (version 1809) on computers that functional system was already activated, the Windows watermark appeared on the desktop. The watermark only appears on non-activated Windows.
Of course the event brings too many problems for users of the operating system that no longer have the key product for their system. Another problem is that they can not find their key with a third party application because their system is not enabled.
The only solution is to go back to the previous version of Windows 10, using the "roll-back" function and then find the product key to reinstall the Windows 10 October 2018 Update.
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