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Hi.<br />
<br />
Does not have to be a device, could be a scheduled task as well. Please look into the system event log to find out about the time and cause.
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Hi.

Does not have to be a device, could be a scheduled task as well. Please look into the system event log to find out about the time and cause.

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OK, but seek for what? There is a myriad of records, and I couldn't find the appropriate event ids.
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OK, but seek for what? There is a myriad of records, and I couldn't find the appropriate event ids.

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For the first few events after it woke up.
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For the first few events after it woke up.

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If your computer is awake in the morning, chances are that it is caused by the Windows Update process. Updates can get installed at 3AM and a that (scheduled) task will wake your computer.
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If your computer is awake in the morning, chances are that it is caused by the Windows Update process. Updates can get installed at 3AM and a that (scheduled) task will wake your computer.

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OK. I will try turning off wake switches on LAN card and also Wake timers, and get back!
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OK. I will try turning off wake switches on LAN card and also Wake timers, and get back!

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Did you do as I suggested? That would help us advance.
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Did you do as I suggested? That would help us advance.

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Yes I did!, and it works :-)<br />
<br />
Thaks!
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<div class="content wysiwyg-content">
Is i possible to find out (in event log?) which device woke computer from sleep?<br />
<br />
I am having some problems with computer waking by itself, and trying to solve it.
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Is i possible to find out (in event log?) which device woke computer from sleep?

I am having some problems with computer waking by itself, and trying to solve it.

Find which device woke up Windows

Windows 7 is an operating system from Microsoft. Features include multi-touch support, a redesigned Windows Shell with a new taskbar, referred to as the Superbar, a home networking system called HomeGroup, and performance improvements.

Windows 7

Windows 10 is a personal computer operating system featuring the "universal application architecture" (UAP); apps can be designed to run across multiple devices with nearly identical code, including PCs, tablets, smartphones, embedded systems, Xbox One, Surface Hub and HoloLens. Windows 10 also includes a virtual desktop system, a window and desktop management feature called Task View, the Microsoft Edge web browser, support for fingerprint and face recognition login, voice-based search (Cortana), new security features for enterprise environments, and DirectX 12 and WDDM 2.0 to improve the operating system's graphics capabilities for games.

Windows 10

This topic area includes legacy versions of Windows prior to Windows 2000: Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions including Windows Mobile.