You may want to disable defender if you already have a reputable anti virus program.

1. Open regedit: Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SecurityHealthService

2. Set the start type to 3.

3. Go to Task Manager, Startup, right click on Windows Defender Notification icon, click Disable. Reboot. Problem solved.

Actual disable step here.


You may also read the story where Microsoft got bash! here.