Super User Asked on November 4, 2021
The tool w32tm
can be used to configure the w32time
service. Recently, I discovered that a stock Windows 10 (not domain joined), synchronizes its time, even if the w32time
service is not running. Both, w32tm /query /status
and w32tm /query /configuration
return:
The following error occurred: The service has not been started. (0x80070426)
Get-Service w32time
confirms this:
Status Name DisplayName
------ ---- -----------
Stopped w32time Windows Time
But in the GUI, I can configure time synchronization and see that it works:
So, is there any other time service than w32time
available? If so, how can I configure it, without using the GUI? (PowerShell cmdlets, command line tools, registry (as last resort), …)
Additional findings:
There are two scheduled tasks that may correlate with the GUI settings:
Get-ScheduledTask | ? TaskName -like 'SynchronizeTime*' | Select-Object -ExpandProperty Actions -Property URI
URI : MicrosoftWindowsTime SynchronizationSynchronizeTime
Id :
Arguments : start w32time task_started
Execute : %windir%system32sc.exe
WorkingDirectory :
PSComputerName :
URI : MicrosoftWindowsTime ZoneSynchronizeTimeZone
Id :
Arguments :
Execute : %windir%system32tzsync.exe
WorkingDirectory :
PSComputerName :
The last run time seems to be within the last 7 days (so quite active). But both tasks have no trigger defined, so something else has to run them.
Pressing the "Sync now" button does not run any of the two tasks. The button seems to execute "C:WINDOWSsystem32SystemSettingsAdminFlows.exe" ForceTimeSync 1
.
Yes, it is a quite unstoppable thing. You stop Windows time service or stop date-time being set automatically, time will be synced. In domain-joined computers, this thing is more strict to make Kerberos authentication work properly. So as a last resort, I think to delete the NTP servers from registry. You can use this powershell code:
Remove-Item -Path "HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionDateTimeServers"
Or a .reg file file for doing this:
Windows Registry Editor Version 5.00
[-HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionDateTimeServers]
Answered by programmer365 on November 4, 2021
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