system boots unexpected

Question

Every evening at 22:00 a backup is made, after the backup the following command is issued : "shutdown /f /s". So the system is down.
In one night every 2 weeks at 3:00 the system is booted. Unattended
What could be the reason of the boot?

Answer 1

@Hans van der Aa

Blockquote

De geplande taak NT TASK\2BrightSparks\SyncBackProx64\AAWRK01-Hans\SyncBackPro PLEX_DATA wordt uitgevoerd, waarmee het inschakelen van de computer wordt aangevraagd.

Blockquote

We have the culprit here

Check with SyncBackPro options and remove the task.
This one should be found also on Scheduled Tasks.

Answer 2

Hi,

Welcome to Microsoft Q&A.
Is there BSOD and dump file generated under C:\Windows\memory.dmp?
Is there event id 6008 or 1001 in event viewer? What's the detailed information?

Best regards,
Molly

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Answer 3

@Molly Lu no BSOD, no memory.dmp and no events (6008 or 1001)

Answer 4

Again, last night the system boots !!!
wake on lan is disabled
no event 6008 or 1001

has someone an iedea?

Answer 5

@Hans van der Aa

Open a Command Prompt (admin) and type these 3 commands:

powercfg -lastwake
powercfg -waketimers
powercfg -devicequery wake_armed

Report the results.