Quick PowerShell script to extract any exclusions configured for Windows Defender
PS C:\Users\bob\Desktop> .\DefenderKeys.ps1
PATHS/FILE EXCLUSIONS
---------------------
M:\
C:\Users\bob\Desktop\Work
S:\
C:\Users\bob\Desktop\program.exe
PROCESS EXCLUSIONS
------------------
program.exe
EXTENSION EXCLUSIONS
--------------------
.com
PS C:\Users\bob\Desktop>