Specify the day of the week to run a scheduled full scan to complete remediation: registry value Scan_ScheduleDayComputerHKLM\Software\Policies\Microsoft\Windows Defender\Remediation

Policy ID
Remediation_Scan_ScheduleDay
Scope
Computer Configuration
Supported on
At least Windows Server 2012, Windows 8 or Windows RT
Source
Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category
Windows Components › Microsoft Defender Antivirus › Remediation

Registry

Scan_ScheduleDay

-Computer

Scan_ScheduleDay

REG_DWORDComputer
Enabled value
Depends on the option value
Element
Specify the day of the week to run a scheduled full scan to complete remediation
Options
ItemStored value
Never8
Every Day0
Sunday1
Monday2
Tuesday3
Wednesday4
Thursday5
Friday6
Saturday7
Apply with .reg · CMD · PowerShell
.reg
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Remediation]

; Options (use only one)
; Never
"Scan_ScheduleDay"=dword:00000008
; Every Day
"Scan_ScheduleDay"=dword:00000000
; Sunday
"Scan_ScheduleDay"=dword:00000001
; Monday
"Scan_ScheduleDay"=dword:00000002
; Tuesday
"Scan_ScheduleDay"=dword:00000003
; Wednesday
"Scan_ScheduleDay"=dword:00000004
; Thursday
"Scan_ScheduleDay"=dword:00000005
; Friday
"Scan_ScheduleDay"=dword:00000006
; Saturday
"Scan_ScheduleDay"=dword:00000007
CMD
:: Options (use only one)

:: Never
reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Remediation" /v "Scan_ScheduleDay" /t REG_DWORD /d 8 /f
:: Every Day
reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Remediation" /v "Scan_ScheduleDay" /t REG_DWORD /d 0 /f
:: Sunday
reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Remediation" /v "Scan_ScheduleDay" /t REG_DWORD /d 1 /f
:: Monday
reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Remediation" /v "Scan_ScheduleDay" /t REG_DWORD /d 2 /f
:: Tuesday
reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Remediation" /v "Scan_ScheduleDay" /t REG_DWORD /d 3 /f
:: Wednesday
reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Remediation" /v "Scan_ScheduleDay" /t REG_DWORD /d 4 /f
:: Thursday
reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Remediation" /v "Scan_ScheduleDay" /t REG_DWORD /d 5 /f
:: Friday
reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Remediation" /v "Scan_ScheduleDay" /t REG_DWORD /d 6 /f
:: Saturday
reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Remediation" /v "Scan_ScheduleDay" /t REG_DWORD /d 7 /f
PowerShell
# Common: create the key
New-Item -Path 'HKLM:\Software\Policies\Microsoft\Windows Defender\Remediation' -Force | Out-Null

# Options (use only one)
# Never
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows Defender\Remediation' -Name 'Scan_ScheduleDay' -PropertyType DWord -Value 8 -Force | Out-Null
# Every Day
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows Defender\Remediation' -Name 'Scan_ScheduleDay' -PropertyType DWord -Value 0 -Force | Out-Null
# Sunday
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows Defender\Remediation' -Name 'Scan_ScheduleDay' -PropertyType DWord -Value 1 -Force | Out-Null
# Monday
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows Defender\Remediation' -Name 'Scan_ScheduleDay' -PropertyType DWord -Value 2 -Force | Out-Null
# Tuesday
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows Defender\Remediation' -Name 'Scan_ScheduleDay' -PropertyType DWord -Value 3 -Force | Out-Null
# Wednesday
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows Defender\Remediation' -Name 'Scan_ScheduleDay' -PropertyType DWord -Value 4 -Force | Out-Null
# Thursday
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows Defender\Remediation' -Name 'Scan_ScheduleDay' -PropertyType DWord -Value 5 -Force | Out-Null
# Friday
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows Defender\Remediation' -Name 'Scan_ScheduleDay' -PropertyType DWord -Value 6 -Force | Out-Null
# Saturday
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows Defender\Remediation' -Name 'Scan_ScheduleDay' -PropertyType DWord -Value 7 -Force | Out-Null