Windows 10 owners report the strange behavior of the operating system: activation becomes invalid with no obvious reason and dialogue "Enable Windows" appears in the lower right corner of the screen. This behavior can also be observed by Golem.de.
Many Reddit users report a problem. This happens with a more expensive Windows 10 Pro license. Error: It does not appear that Microsoft Activation Server does not recognize license keys and assumes that they are for the home version. Some users have been able to easily manage their computers with the valid Windows 10 Pro key for years.
Microsoft knows the problem and apparently has a repair
It seems that Microsoft knows the problem and is reflected in a support forum: "We are aware of reports that Windows 10 Pro and Windows 10 Enterprise do not recognize their licenses any longer as if they were activated." The company has already made a repair that will solve the problem. Affected users should run an automated troubleshooter in the activation submenu and verify that the problem is resolved.
The support article now has more than 330 responses. The problem seems to be quite common. In the reddit thread, the user also determines a solution that should work. With the command line command slmgr -ato users can re-activate their system. This works quite well for some users.
An uncontrolled system will not only display a rather annoying watermark. Adjustment options, such as changing the desktop background or color scheme, are also disabled. However, the system in the general function is not limited. However, such behavior is unacceptably unacceptable, since the licenses for Windows 10 Pro and Windows 10 Enterprise are expensive.