Windows stuck on update loading screen

The automatic start of an update is normal, but remaining on an unchanging loading screen for hours and returning there after every restart means Windows is not completing its startup or update phase. Enter Windows Recovery Environment by interrupting startup twice: power on, wait for the Windows or manufacturer logo, then hold the power button to shut down; on the third start, choose Advanced options. Run Startup Repair first. If it cannot fix the problem, choose Troubleshoot > Advanced options > Uninstall Updates and remove the latest quality update, not the feature update, then restart. System Restore is the next non-destructive option if a restore point exists. You may need your BitLocker recovery key for these tools. Do not choose Reset this PC before backing up important files. If recovery will not open, create Windows installation media on another PC, boot from it, and select Repair your computer rather than Install now