
I tried all suggestions here prior to today and tried this, this, this. Enable Turn off Microsoft Defender Antivirus.


Open Windows Security (type Windows Security in the search box).Tamper Protection must be disabled before changing Group Policy settings, otherwise these are ignored. In Windows 10 1903, Tamper Protection was added. Open Resource Monitor (type resmon.exe in the search box).In newer versions of Windows, Group Policy settings for Microsoft Defender are reverted back.
