Try rebooting the machine....a complete restart.
Make sure Windows is totally up to date in all aspects.
If it persists afterwards, run the Virtual Technician as it can often fix problems.
I don't know suddenly it is working after 4 days of malfunction.
Daily i shut down for 3 or 4 times (it is my home PC) but I think 4th day i restart the PC to log into non-admin, usually i do logoff to go to different user.
I think restart works. Not shutdown and reboot.