Okay thanks to
@FrankS I reinstalled Emsisoft Anti-Malware.
I had to change some settings to keep it running optimal with my laptop:
In Google Chrome I had to remove the "AppContainer Lockdown" flag otherwise it crashed.
I had to disable Windows defender from start-up in the task manager.
To keep the speedy start-up of my laptop I had to disable "Protect the computer even if no user is logged on" under Protection File Guard.
Settings I changed myself (no impact on the performance of my laptop):
Settings Privacy: unticked "Submit crash and usage reports"
Settings Notifications: unticked all except: "Computer restart notifications"
Protection Surf Protection set Privacy risks to" Block silently "
Protection File Guard: set PUP detections to "Quarantine with notification"