System waking at same time every day but no lastwake info

Try3 said:

Oh.

Sorry, I haven't got any useful suggestions unless there were any clues on those Kernel-General events [unless they were merely event 12 entries, "The operating system started at system time ..."].


Best of luck,
Denis

Yes the Kernel-General events were just advising that the system had restarted

Try3 said:

I did not know such a facility existed.


Have you checked the time set for system maintenance?
Start menu,
Windows system,
Control panel,
[Set View by to large/Small icons, just so you can see everything],
Security & maintenance,
Maintenance dropdown arrow,
Change maintenance settings.
-
Check the time and, if relevant, unset the wake the computer checkbox,
If you change anything, make sure you click on the OK button at the very bottom of the window & give Admin permission to save the change.


Denis

I've checked this. Automatic Maintenance is set to run at 2am daily, and the wake option was already unchecked:

Have you checked through the various options available such as :
settings>system>power>power & sleep>additional power settings and
settings>update & security>troubleshoot>additional troubleshooters>power.

joeandmarg0 said:

Have you checked through the various options available such as :
settings>system>power>power & sleep>additional power settings and
settings>update & security>troubleshoot>additional troubleshooters>power.

Thanks for the suggestion. I've just had a look at those areas, but I don't see anything that would trigger waking from sleep mode.

Have you also tried "powercfg waketimers" towards the end of your work session, just in case there is some hidden task ?

Try3 said:

I wonder if a Task scheduler task might be involved.
What did you do what you say has disabled all tasks?

Denis

I meant that I had manually disabled everything in Task Scheduler (apart from MicrosoftEdgeUpdateTaskMachineCore1d748b511302c98, which can't be disabled but which is only triggered when a user logs on)


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das10 said:

Have you also tried "powercfg waketimers" towards the end of your work session, just in case there is some hidden task ?

Aha....I've just run that and it has revealed the item below, which wasn't in the Task Scheduler. I've now disabled the HauppaugeTVServer.exe service, and will see what happens...

Code:

C:\WINDOWS\system32>powercfg waketimers
Timer set by [SERVICE] \Device\HarddiskVolume3\Program Files (x86)\WinTV\TVServer\HauppaugeTVServer.exe (HauppaugeTVServer) expires at 20:00:00 on 09/12/2022.