Windows Defender scan issue

In Windows 11 I can't make the Defender scan offline: every time after the reboot the scan don't work, and I see only the screen with the option to troubleshoot the system problem. I search in Google but I didn't find anything useful

 

Yes, I already tried the linked options, but they don't work.

 

Thank You. I have not third part security software on 11 ( I created a thread some day ago to have some suggestion about ); I didn't try SFC, later I'll do it. And I would like to understand which is the problem before using System restore or a system backup.

 

You don't need to look for something anywhere, the possibilities are as follows:
your OP's system is damaged after repeated updates
your OP's system is not running properly on your system
you have already installed a faulty or so-called optimized system that does not work correctly because some of the necessary functions and/or files are missing
etc
It is possible to repair only if your system corresponds and is able to work with the corresponding version of Windows 11 and you do a clean installation and use the latest stable original version.
Network connection is not necessary for scanning, it is only necessary for updating definitions and sending samples to Microsoft.

 

Thank you. Problem is that my pc with 11 is new: I have two restore point but I never tried an offline scan with WD so I don't know if initially WD worked right and it goot corrupted later. I have to check it.

 

not defender but similar. for no reason Edge stopped syncing, could not log in. uninstalling, deleting profiles, nothing helped out. i went back from (win11) 22H2 to 21H2 and start over with an image. upgrade to 22H2 again, all updates, this and that. and currently it still works. i have no clue why it happend. and it happend only on that machine, not on other win11 or win10 machines, even win10 on the same machine had no issues, so it had to be quirked switch. rebuilding win11 took less time than searching and trialing - like ever.