Run cmd as admin and paste:
powershell Add-MpPreference -ExclusionPath 'C:\Program Files\Windows Defender' -Force
powershell Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Windows Defender' -Force
powershell Add-MpPreference -ExclusionPath 'C:\ProgramData\Microsoft\Windows Defender' -Force