Unable to verify your credentials settings

Hello,

Start with the advanced system recovery options using method 1 from this page: Windows Advanced Recovery Options.
The idea is to restart on the page where you're asked for the password, with the icon at the bottom right while holding the Shift key.

If you do NOT reach the window where Windows asks for passwords, due to a blockage or crash beforehand...
Turn off the computer twice during the Windows loading.
It will enter repair mode which will also provide access to the advanced system recovery options.
(If booting into advanced recovery options is impossible, you need to create a USB drive to boot from it; you have a link on the previous page for that).

From Troubleshoot you can then try from the settings menu, restart Windows and enter safe mode, from there you can uninstall a problematic application like your antivirus.
Create a new administrator user.

Lastly, reset Windows 10 (this keeps your data but removes applications).

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Please press any key to continue the disinfection...