Turn off Auto Exclusions

Supported on: At least Windows Server 2016

Registry

HKLM Software\Policies\Microsoft\Windows Defender\Exclusions

Value name: DisableAutoExclusions

Enabled: DisableAutoExclusions = 1

Disabled: DisableAutoExclusions = 0

Description

Allows an administrator to specify if Automatic Exclusions feature for Server SKUs should be turned off. Disabled (Default): Microsoft Defender will exclude pre-defined list of paths from the scan to improve performance. Enabled: Microsoft Defender will not exclude pre-defined list of paths from scans. This can impact machine performance in some scenarios. Not configured: Same as Disabled.