My computer crashes and reboots while in sleep mode...

Note: This is not because of Windows updates, or from anything like that.

I've had this problem for quite a while now with my computer, if I put my computer to sleep manually everything is fine, it doesn't crash or reboot. However, whenever I let my computer idle for 20 minutes, it will go to sleep mode, and then immediately crash and reboot after that. This happens every single time I let it idle to go into sleep mode, but never when I put it in sleep mode manually.

How do I find out what's causing this problem... and how do I stop it?

Mine does this sometimes too...can't answer why though.

Check your logs event viewer or action center

Also manually change your settings in power options. I personally don't let my PC sleep.

Check your logs event viewer or action center

Also manually change your settings in power options. I personally don't let my PC sleep.

Blue-Sky

Checking the log got me somewhere

I guess it's losing power when it goes to sleep mode?

I have this problem too. One of my event logs traced it to something with the GPU. Don't know where to go from here.