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laptop sleeping


I was wondering how to keep my laptop from going to sleep when it's plugged in. I have all the settings set to "never" but it still goes to sleep after ten-fifteen minutes. Anyone know how to change this?
For what it's worth, it's a Dell laptop

Hi, are you sure it's going to sleep, and not just a blank screensaver? Some have encountered that.

If it isgoing to sleep, a temporary fix is to install 'Don't sleep' (freeware) and run it, while finding a solution. Plenty of sleep related issues have been reported, so worth searching the forum- there are many sleep-related threads.

that was a good thought, but no, it is going to lock screen and requiring a password to open up - there is an option for this in the screen saver but all of that is turned off. The reason that it is such a bother is that I use it to display documents on a projector and halfway through the presentation it goes to lock screen.

and the screensaver is set to "none"

That freeware should give you an instant fix, as you've reviewed all options in
Control PanelAll Control Panel ItemsPower Options

(from 'Additional power settings' in Settings, System, Power & Sleep)
Suggest reviewing:

I was hoping to fix it in windows because don't sleep doesn't seem to differentiate between plugged in and not plugged in mode, but I'll give it a shot. Thanks!

I was hoping to fix it in windows because don't sleep doesn't seem to differentiate between plugged in and not plugged in mode, but I'll give it a shot. Thanks!
Hi. You could try running the system file checker to make sure everything is okay with Windows system files. Open an admin command prompt and enter
Code:
sfc /scannow
- we're looking for no integrity violations found. If it comes back with problems that could not be fixed, please run it at least 3 times, rebooting in-between.

Hi. You could try running the system file checker to make sure everything is okay with Windows system files. Open an admin command prompt and enter
Code:
sfc /scannow
- we're looking for no integrity violations found. If it comes back with problems that could not be fixed, please run it at least 3 times, rebooting in-between.
Okay so the scan came back clean... Man this is frustrating.

Okay so the scan came back clean... Man this is frustrating.
Sure is! Are you on the latest version?
Type winver in the search box and run the command. It should be Version 1511 (OS Build 10586.63)

EDIT: Can you turn off Fast Startup and give the system a few shutdowns/startups (not restarts), and see if that makes the settings stick?

okay, I've got version 10.0 build 10240 but windows has no update. I should mention that this is a work machine and the IT guys (who are scratching their heads on this problem) may have altered the updater.

laptop sleeping