Turn off cache power mode: registry value EnablePowerModeStateComputerHKLM\Software\Policies\Microsoft\Windows\NvCache

Policy ID: CachePowerModePolicy
Scope: Computer Configuration
Supported on: At least Windows Vista
Source: Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category: System › Disk NV Cache

Registry

EnablePowerModeState

REG_DWORDComputer

HKLM\Software\Policies\Microsoft\Windows\NvCache Current key

Enabled value: 0
Disabled value: 1

Apply with .reg · CMD · PowerShell

.reg

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\NvCache]

; Options (use only one)
; Enabled
"EnablePowerModeState"=dword:00000000
; Disabled
"EnablePowerModeState"=dword:00000001

CMD

:: Options (use only one)

:: Enabled
reg add "HKLM\Software\Policies\Microsoft\Windows\NvCache" /v "EnablePowerModeState" /t REG_DWORD /d 0 /f
:: Disabled
reg add "HKLM\Software\Policies\Microsoft\Windows\NvCache" /v "EnablePowerModeState" /t REG_DWORD /d 1 /f

PowerShell

# Common: create the key
New-Item -Path 'HKLM:\Software\Policies\Microsoft\Windows\NvCache' -Force | Out-Null

# Options (use only one)
# Enabled
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows\NvCache' -Name 'EnablePowerModeState' -PropertyType DWord -Value 0 -Force | Out-Null
# Disabled
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows\NvCache' -Name 'EnablePowerModeState' -PropertyType DWord -Value 1 -Force | Out-Null