Check for New Signatures Before Scheduled Scans

Checks for new signatures before running scheduled scans.

If you enable this policy setting, the scheduled scan checks for new signatures before it scans the computer.

If you disable or do not configure this policy setting, the scheduled scan begins without downloading new signatures.

Supported on: At least Windows Vista

Registry HiveHKEY_LOCAL_MACHINE
Registry PathSoftware\Policies\Microsoft\Windows Defender\Scan
Value NameCheckForSignaturesBeforeRunningScan
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

windowsdefender.admx

Administrative Templates (Computers)

Administrative Templates (Users)