Windows 11 just shut down while computer was in sleep mode

[Ravenfreak]

This just happened to me, I went and ate dinner while I was in the middle of posting over at Forum Promotion. My computer went to sleep after there was no activity, which is normal. I went to get back on my computer, I noticed the light on my keyboard was off. Again it's typical, so I hit enter on the keyboard and my computer had rebooted. I did notice that it's been wanting me to update my system, I'm guessing while my computer was idle Windows decided to install the update. Has Windows ever done this to you? Also I need to get into my computer's bios screen and see why it often will boot into Lubuntu after the computer restarts, I should have the boot options be set to my SSD first, not my USB drive that contains Lubuntu. Thankfully whenever I did boot back into Windows my browser was still up and so was Foobar 2000.

[AWS]

Windows 7 and above have this feature they call hybrid sleep. It shuts the computer down and keeps everything you had opened in memory. When you wake it all your programs will reopen to the state they were in. 

Windows will install updates at times when it see's the machine as idle. In that case it will also keep all your programs open and in memory.

[uptrendfinancialsignal]

I’ve had similar problems with Windows when it was installing updates. It’s frustrating, but at least you didn’t lose any work that you had to submit. You should probably turn the auto-update off. That's what I did when it happened to me.