Level 11
View attachment 241220
I turn on my PC and that happened, Kaspersky is on patch J, no changes and this never happened before.

I noticed by right-clicking a file and saw Windows Defender file scan on there.

Anti-malware service executable on task manager is running too.
It has happened to me too with Comodo Internet Security. Sometimes the AV can't register in Windows Security Center (even if it's running well) and Windows Defender re-activates.
It has never happened with my current AV, FortiClient.
Just in case, I have disabled Windows Defender by O&O ShutUp10