Windows Server 2019 Turning off File Explorer heap termination on corruption must be disabled.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
low	V-205871	SRG-OS-000480-GPOS-00227	WN19-CC-000320	SV-205871r991589_rule	2025-02-25	3

Description
Legacy plug-in applications may continue to function when a File Explorer session has become corrupt. Disabling this feature will prevent this.

ℹ️ Check
The default behavior is for File Explorer heap termination on corruption to be enabled. If the registry Value Name below does not exist, this is not a finding. If it exists and is configured with a value of "0", this is not a finding. If it exists and is configured with a value of "1", this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\Explorer\ Value Name: NoHeapTerminationOnCorruption Value Type: REG_DWORD Value: 0x00000000 (0) (or if the Value Name does not exist)

ℹ️ Check

The default behavior is for File Explorer heap termination on corruption to be enabled. If the registry Value Name below does not exist, this is not a finding. If it exists and is configured with a value of "0", this is not a finding. If it exists and is configured with a value of "1", this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\Explorer\ Value Name: NoHeapTerminationOnCorruption Value Type: REG_DWORD Value: 0x00000000 (0) (or if the Value Name does not exist)

✔️ Fix
The default behavior is for File Explorer heap termination on corruption to be disabled. If this needs to be corrected, configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> File Explorer >> "Turn off heap termination on corruption" to "Not Configured" or "Disabled".