How to DISABLE Automatic Reboots After Updates in Windows 10

How to disable Windows 10 Updates from forcing an automatic reboot and prevent data loss due to random forced Windows Update reboots.

I often work late at night on coding or website design. Sometimes, I'll get to the point where I need to stop and sleep, so I'll lock the workstation and get some sleep, expecting to be able to unlock it and carry on in the morning. Sometimes, I leave a large download running overnight; I'm stuck on a < 1MB/sec connection thanks to BT still using old Victorian infrastructure, but in the morning - no download. Other times, I'll leave a program running to perform a large calculation, a backup archive running, or a video encoding.

Whatever your reason for leaving a computer on overnight, Windows Updates will automatically reboot regardless of the applications you have open or the tasks being performed. In the morning, Windows is all freshly rebooted, and your applications, browser tabs, and unsaved work are all gone.

There is no way to turn off automatic reboots in Windows 10 - Microsoft forces it upon you.

You can set active hours, and Windows will schedule an update with these hours, but you must leave a 6-hour block free where Windows can reboot.

There are two methods to prevent Windows from automatically rebooting, both of which involve using the task scheduler to fool Windows into delaying update reboots.

The first step is to turn off the Windows Update reboot service.

Disable Windows 10 Update Reboots by Disabling the Reboot Service

Windows reboots using the Scheduled Task called \Microsoft\Windows\UpdateOrchestrator\Reboot. However, suppose you open Task Scheduler and deactivate it. In that case, Windows will happily re-enable it - even if you change its permissions to make it read-only.

If a reboot is scheduled, the following command, run with administrative privileges, will turn off the task:

schtasks /change /tn \Microsoft\Windows\UpdateOrchestrator\Reboot /DISABLE

Knowing this, you can create your own Scheduled Task to run the above command and disable Windows' Reboot periodically. If you're familiar with how to use Task Scheduler, set up your task. Otherwise,

1. Copy and paste the markup below into a text editor.
2. Save it as an XML file.
3. In Task Scheduler, click on Actions > Import Task... and select this file.
4. Tweak the configuration as needed.

<?xml version="1.0" encoding="UTF-16"?>
<Task version="1.4" xmlns="http://schemas.microsoft.com/windows/2004/02/mit/task">
  <RegistrationInfo>
    <Author>http://superuser.com/users/1909/kpozin</Author>
    <URI>\SuperUser\Cancel Windows automatic reboot</URI>
  </RegistrationInfo>
  <Triggers>
    <CalendarTrigger>
      <Repetition>
        <Interval>PT10M</Interval>
        <Duration>P1D</Duration>
        <StopAtDurationEnd>false</StopAtDurationEnd>
      </Repetition>
      <StartBoundary>2016-11-16T18:30:00</StartBoundary>
      <Enabled>true</Enabled>
      <ScheduleByDay>
        <DaysInterval>1</DaysInterval>
      </ScheduleByDay>
    </CalendarTrigger>
  </Triggers>
  <Principals>
    <Principal id="Author">
      <!-- That's the SYSTEM user -->
      <UserId>S-1-5-18</UserId>
      <RunLevel>HighestAvailable</RunLevel>
    </Principal>
  </Principals>
  <Settings>
    <MultipleInstancesPolicy>IgnoreNew</MultipleInstancesPolicy>
    <DisallowStartIfOnBatteries>false</DisallowStartIfOnBatteries>
    <StopIfGoingOnBatteries>true</StopIfGoingOnBatteries>
    <AllowHardTerminate>true</AllowHardTerminate>
    <StartWhenAvailable>true</StartWhenAvailable>
    <RunOnlyIfNetworkAvailable>false</RunOnlyIfNetworkAvailable>
    <IdleSettings>
      <StopOnIdleEnd>true</StopOnIdleEnd>
      <RestartOnIdle>false</RestartOnIdle>
    </IdleSettings>
    <AllowStartOnDemand>true</AllowStartOnDemand>
    <Enabled>true</Enabled>
    <Hidden>false</Hidden>
    <RunOnlyIfIdle>false</RunOnlyIfIdle>
    <DisallowStartOnRemoteAppSession>false</DisallowStartOnRemoteAppSession>
    <UseUnifiedSchedulingEngine>false</UseUnifiedSchedulingEngine>
    <WakeToRun>false</WakeToRun>
    <ExecutionTimeLimit>PT1H</ExecutionTimeLimit>
    <Priority>7</Priority>
  </Settings>
  <Actions Context="Author">
    <Exec>
      <Command>schtasks</Command>
      <Arguments>/change /tn \Microsoft\Windows\UpdateOrchestrator\Reboot /DISABLE</Arguments>
    </Exec>
  </Actions>
</Task>

Disable Windows 10 Update Reboots by Sliding the Active Hours

Another way to prevent Windows from automatically rebooting is to fool the rebooted service by keeping the active hours moving so that it never reaches the 6-hour reboot window. This is done using a scheduled task running a batch file, automatically updating the active hours and putting them forward by 12 hours each time.

Schedule a single Batch Script (provided below) with Task Scheduler to run twice a day:

• Once at 6:05 AM
• Once as 6:05 PM

Each execution sets the ActiveHoursStart and ActiveHoursEnd times to values, making Windows think you're always active and ensuring no reboot occurs from Windows Update operations.

The batch logic and the scheduling of this process are simple to scale and adjust should you run into an issue (e.g. you run into issues with power-saving modes such as Sleep or Hibernate.)

@ECHO ON

SET HH=%TIME: =0%
SET HH=%HH:~0,2%

IF %HH%==06 SET StartHour=06 & SET EndHour=13
IF %HH%==18 SET StartHour=12 & SET EndHour=07

CALL :ChangeActiveHours
REG IMPORT "%DynamicReg%"
EXIT

:ChangeActiveHours
SET DynamicReg=%temp%\ChangeActiveHours.reg
IF EXIST "%DynamicReg%" DEL /Q /F "%DynamicReg%"

ECHO Windows Registry Editor Version 5.00                              >>"%DynamicReg%"
ECHO.                                                                  >>"%DynamicReg%"
ECHO [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsUpdate\UX\Settings] >>"%DynamicReg%"    
ECHO "ActiveHoursEnd"=dword:000000%EndHour%                            >>"%DynamicReg%"
ECHO "ActiveHoursStart"=dword:000000%StartHour%                        >>"%DynamicReg%"
ECHO "IsActiveHoursEnabled"=dword:00000001                             >>"%DynamicReg%"
GOTO :EOF

The registry values are set in hexadecimal format. Also, note that the logic example below expects the script to be executed at a frame of 6:00:00 AM - 6:59:59 AM or 6:00:00 PM - 6:59:59 PM only. However, this can be adjusted easily with the IF %HH%==XX portion of the logic; you can also use this same logic to test this functionality to confirm it works as expected to change the value.

When you are ready to allow Windows Updates to reboot the machine per its update operations, you can do so manually since neither method stops Windows Updates from being downloaded and installed. If you need to re-enable Windows Update Reboots, disable the scheduled task that executes it with Task Scheduler.

Configuring Custom Active Hours

To configure active hours manually on your device to prevent sudden restarts, use these steps:

1. Open Settings.
2. Click on Update & Security.
3. Click on Windows Update.
4. Click the Change active hours option.

   

5. Turn off the Automatically adjust active hours for this device based on the activity toggle switch.
6. Click the Change option.

   

7. Specify the time range you usually use your device.

   

   Quick tip: The maximum time you can set is 18 hours. If you specify a range more than that, it'll be marked invalid.

8. Click the Save button.

After you complete the steps, if an update is pending, the computer will only restart outside the active hours you specified, preventing interruptions while you're working.

Prevent Automatic Updates from Restarting Windows XP, Vista and 7

Windows XP's automatic update facility is clearly a good thing. Except when an update is installed, it requires a reboot, and you're working on the computer at the time. This results in an annoying dialogue box informing you, "You must restart your computer for the updates to take effect, " and "Do you want to restart your computer now?".

You get two choices: Restart Now or Restart Later. When you click on Restart Later, it will nag you again ten minutes later until you restart the computer.

Automatic Updates! Stop Nagging Me!

Two methods can be used to change this behaviour, one temporary and the other permanent.

Stop the Automatic Updates Service

On the command line, type:

net stop wuauserv

or from Control Panel -> Administrative Tools -> Services, find Windows Update Service, click on it, and then click Stop.

Both methods will stop the message from appearing until you restart, then it's back to normal.

Permanent Fix to Prevent Automatic Updates Nagging

Click on the Start Menu, then Run and key in "gpedit.msc" (without quotes) and navigate to the folders to:

  Local Computer Policy
  ..Computer Configuration
  ....Administrative templates
  ......Windows Components
  ........Windows Update

There are two settings, and both will work, so it's your choice. Either enable No auto-restart for scheduled Automatic Updates installations or set Re-prompt for the restart with scheduled installations to a long time interval, like 4400 minutes.

The default values are "Not configured" if you want to return to normal.