Enable or disable file hash computation feature. Enabled: When this feature is enabled Microsoft Defender will compute hash value for files it scans. Disabled: File hash value is not computed Not configured: Same as Disabled. Fix: (1) GPO: Computer Configuration\Administrative Templates\Windows Components\Microsoft Defender Antivirus\MpEngine\Enable file hash computation feature (2) REG: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\MpEngine!EnableFileHashComputation