Hello ,
Please run command sfc /scannow to detect and repair system files.
Please press Ctrl+Alt+Del, and then in the lower right corner please select restart to see if it is helpful.
In addition, you could run command shutdown -r -t 0 as an administrator in CMD to restart.
Finally, if all above options were not successfully proceeded, please enter the safe mode to check whether the issue was still existed. If yes, it may be caused by a system abnormality.
If you want an in-depth investigation, I would also suggest you contact Microsoft Customer Support and Services where more in-depth investigation can be done so that you would get a more satisfying explanation and solution to this issue.
You may find phone number for your region accordingly from the link below:
https://support.microsoft.com/en-us/help/4051701/global-customer-service-phone-numbers
Best Regards,
Sunny
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