Hello,
I will walk you through a few steps. Some of these are just to help figure out what is wrong, not to fix it right away. So if nothing changes after a step, that is normal. I will keep going until we solve it.
Can you attach the error message?
Please open the Windows Recovery Environment using the steps below:
- Press and hold Shift, then click the Restart button on the lock screen to open recovery options. Click Advanced options>Troubleshoot.
- If you can't reach the lock screen or start your computer, restart your PC twice when the boot screen appears. On the third time, Windows should open Windows Recovery automatically. Select Advanced options>Troubleshoot.
From there, select Uninstall updates>Uninstall the latest cumulative update.
I look forward to hearing from you to get the results of the troubleshooting.