Novice security questions

[gamerguy2]

Hello.
today my computer woke from sleep mode.That is no big deal alone. I have my Samsung Galaxy connected to the USB to charge the power. My question is how do you identify what specifically woke the computer?

I have noticed that when using Windows 10 that email and other "lastwakes" will wake it from sleep mode I checked powercfg -lastwake it confirmed USB and gave the information. I tried figuring it out on my own by accessing the Event Viewer.

I went into the event viewer. The last 2 days August 15 and 16 there are a series of events.

Aug 15. 10110 Critical. 10116 Critical. 123. 1014 level 3. 7 level 2. 137 level 2. 1000 level 2. 3 level 2. 7032 + 7031 level 2.

Aug16. 2484 level 1. 1002 level 2. Then later four 1014 level 3 warnings.

There are very few other events from the previous weeks. Can anyone from this information identify what woke the computer from sleep? So if any of you has time to explain what is going on it would be helpful.

I am a hardware technician and my computer is running optimally. I am always curious and interested in what is going on with the software.

 

[gamerguy2]

Wake Source: Timer - Windows will execute 'NT TASK\Microsoft\Windows\rempl\shell' scheduled task that requested waking the computer.

I looked further into the matter and found this in the event troubleshooter. Is there a way to find out what put the computer back to sleep? That is irrelevant to the original question, but I am still curious. I am mostly interested in identifying how and if my Samsung Galaxy is causing it to wake. My Galaxy I remember has been connected to my pc via USB to charge for the duration of the events listed on August 15 + 16.

I noticed that it gives the information-

"computer has returned from a low power state". Is there an Event Viewer option to show how it was put back to sleep or turned off?

 

[PeterRoss]

Interestingly enough, I have the same issue with my desktop. It randomly wakes up for no apparent reason. No mouse movement, screen inputs, but I do have a solid handful of cables connected to it. I wonder if it has something to do with the drivers? Maybe running services while the PC is sleeping?

 

[Mike64]

Wake Source: Timer - Windows will execute 'NT TASK\Microsoft\Windows\rempl\shell' scheduled task that requested waking the computer.

I looked further into the matter and found this in the event troubleshooter. Is there a way to find out what put the computer back to sleep? That is irrelevant to the original question, but I am still curious. I am mostly interested in identifying how and if my Samsung Galaxy is causing it to wake. My Galaxy I remember has been connected to my pc via USB to charge for the duration of the events listed on August 15 + 16.

I noticed that it gives the information-

"computer has returned from a low power state". Is there an Event Viewer option to show how it was put back to sleep or turned off?

I'm pretty sure any phone-event that "wakes up" the phone will in turn wake up the computer (e.g., normal Android notifications and other background activity shouldn't do it, but I expect an alarm or calendar event, let alone a text message or phone call, would.) As for putting your PC back to sleep, I don't know about the event logs, but what are your power settings? Did the phone wake it up long enough before you noticed it was asleep again for the computer just to have gone back to sleep per its system power settings?

 

[gamerguy2]

Interestingly enough, I have the same issue with my desktop. It randomly wakes up for no apparent reason. No mouse movement, screen inputs, but I do have a solid handful of cables connected to it. I wonder if it has something to do with the drivers? Maybe running services while the PC is sleeping?

This happens a lot with Windows 10 I have noticed. There is a way to turn off the events so the computer does not wake. I had it set before my Windows 10 crashed and reinstalled the backup from 6 months prior. Anything important is backed up to an external drive. Updating Windows 10 was the one difficult step in returning my computer to (close) to its previous state.

I'm pretty sure any phone-event that "wakes up" the phone will in turn wake up the computer (e.g., normal Android notifications and other background activity shouldn't do it, but I expect an alarm or calendar event, let alone a text message or phone call, would.) As for putting your PC back to sleep, I don't know about the event logs, but what are your power settings? Did the phone wake it up long enough before you noticed it was asleep again for the computer just to have gone back to sleep per its system power settings?

At first I was spooked when it went back to sleep. I thought of other more suspicious events in my 18 years in the IT industry. There is usually a rational answer. First wake event was at 10:17am. I noticed it was back to sleep at 3pm ish. As a technician (off this is my weekend) I went through every scenario. Bingo I had the power settings to put it back to sleep after 4 hours. The USB wake event was actually from tapping my keyboard at 3 ish. Is there a way to find wake events from the last 24 hours in the CMD prompt? I figured out the problem while writing the article. I decided not to waste everything I wrote as I am curious as to what on the Samsung Galaxy would wake my pc out of sleep. Why some events were listed as critical.That is why I wrote at the end of my article I was looking for an explanation of the events from the Event Viewer. Good deduction on your part.

 

[PeterRoss]

Before going to sleep put your PC on a 1-minute sleep timer? Spaghetti solutions at its finest. Okay, I did more testing, my copy of Windows even woke up from Hibernation, this is concerning. I doubt malware is the issue, as I work extensively in the industry and my practices are good enough, still, going to try doing a full cleanup. I should do a full wipe and clean install of my Windows as well...

 

[who?]

If there is a very small earthquake or you step heavily while going to the bathroom or somebody slams a door that might shake the desk enough to cause mouse movement.

 

[who?]

Do you have any cats that might bump the mouse or walk on the keyboard? If anything bumps the desk or table that might do it. Maybe the cleaning person bumps the mouse while dusting.

 

[PeterRoss]

Speaking of bumps and mouse movements. I had a bad wire on my mouse, which was causing my mouse to activate on occasion. With the addition of faulty keyboard drivers and I figured out that's why my copy of Windows was waking up. Also walking around and unstable table can force Windows to wake up. Even out of hibernation.