In use Windows 10 operating system You can see if it has been upgraded with Microsoft. Updated October 2018 It was cost effective because we brought this number of users "wisely". Also, the last error related to Activation key A large number of users were not innocent to find out that the Windows 10 operating system was no longer active after the update. Often the update will change the version of Windows 10 (for example, from Professional to Home) and the license key will be invalid.
Microsoft was able to recognize the error immediately and not be able to replace the license key, helping users, Finally, it turns out that there was a problem with the activation server, and that users were affected globally, at least not by Microsoft, but many experts disagreed. Because Microsoft has addressed all issues related to the activation server, any issues with the activation key will be resolved soon. All computers must be reactivated within 24 hours and the watermark on the desktop will of course disappear.