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I have searched on google, and all I found was instructions on how to schedule a shut down. A question on this website - "Can my Windows 8 computer turn on by itself?" - had an answer which said "Most PCs have a "wake up timer" in the BIOS whereby they can automatically power on at a specific time of day." However, after spending some time finding out how to access the boot menu on my Windows 8 computer, I did't find any way to schedule it to turn itself on. I did find something that said "Create boot option" which would ask me for a file path.

My computer is an ACER which already had windows 8 when I bought it, less than a year ago. Thanks in advance.

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Then I guess your BIOS doesn't allow this. Can you explain why you need this as there may be other options (such as leaving it on / hibernate mode etc) –  Dave Aug 27 '13 at 10:56
I didn't need it for anything serious at the moment. I was thinking of using it to automatically do some stuff on my computer even if at that time my computer was turned off. I already know how to schedule normal tasks, but they won't cause the computer to turn itself on if necessary... –  Sirplentifus Aug 27 '13 at 11:01
So, why can't you leave your machine in hibernate mode or, leave it on when you need it to be left on? I think many would agree that leaving the PC on won't damage it in normal situations/circumstances (although there are always exception to the rule and some smart ass will always pipe up with) and battery power/cost will typically be minimal. –  Dave Aug 27 '13 at 11:02
Well, I guess that's a valid option. The task scheduler is capable of waking up the computer if it's hibernating? –  Sirplentifus Aug 27 '13 at 11:05
Did you access the computer's BIOS/UEFI if you have not then your looking in the wrong place ( within windows ) Windows cannot turn on your computer. –  Ramhound Aug 27 '13 at 11:12

1 Answer 1

You can normally do this in the BIOS (if it supports) and although instructions vary between each BIOS, try

Shutdown your computer.

Turn it back on . Press delete when you get to the screen that says "Press DEL Or F1 to enter SETUP"

Use the arrow keys to find the "Power" tab. Scroll to "Power Up Control. " Press enter.

Scroll to "Automatic Power Up." Select "Everyday."

Go to "Time Alarm." Press enter to change each number.

Press "Esc" on your keyboard when you have reached the desired power-up time. Say yes when it asks for confirmation of the changes.

Wait for your computer to reboot. Turn it off each night. It will boot itself up at the desired time.

Or, you can leave your machine on in sleep or hibernate or similar when you need to run a task. There are scripts you can run to get round the hibernation issues (including the option in task scheduler of Allow the task to wake the PC). You may prefer sleep or possibly hybrid sleep though...

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I was capable of accessing the BIOS. I just didn't find any options that have anything to do with what you're saying. There's no "Power" tab for example. And apparently, in a computer built with windows 8, you cannot access the BIOS in the way you describe. You have to go to the side bar, click definitions, click restart while holding shift key, and then you get a blue screen with some options, which can lead you to the computer's BIOS –  Sirplentifus Aug 28 '13 at 11:40

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