In my case, it just keeps rebooting and in "Security and maintenance" I can see the right after my PC, WHILE RENDERING MY 3D PROJECT WAS INSTALLED SOME SHI "Installation Successful: Windows successfully installed the following update: Security Intelligence Update for Microsoft Defender Antivirus - KB2267602 (Version 1.407.391.0) - Current Channel (Broad)"
It has happened almost every day for the last month, I tried to fix this problem so many times.
Maybe I should just downgrade till windows 10(((((