My windows 8 is randomly logging off on its own, bug?

update - I meant to post this ages ago:

The problem hasn't happened to me for AGES but it DID happen yet again, right in front of my eyes, screen went blank then metro start screen restart.

I think it only hasn't happened for ages, because it's been a while since I've done truly memory intensive tasks. But I WILL later down the track, so I hope the problem's gone away in some windows update or something!

It seemed to be when the memory or something gets overloaded. It looks to me to be a shocking tablet/mobile-oriented design choice: 'memory gets too choked / 'apps' don't perform so well? EASY - metro will reset itself for you to start all over again.' (wow, such good memory manegement!)

Windows ME bad, indeed, sticky.

Same problem here. Terrible! Going to back to Windows 7 if this keeps going!

I had the same, starting a video which took a while. Screen went black. Boom logoff from windows and all applications were killed automatically (yes really killed, not nicely ended). What a worthless OS. I need stability, not these kind of jokes!

Still happening, more often now - i'll be right in the middle of working and it logs me out - i log in and all of my apps are closed.  Windows 8 feels more like a Windows ME experience :-(

this JUST happened to me again.  Once i logged in and tried to reply to this post i had to log in to Live again.  Rebooting seems to solve my issue for a while but im sure it will be back later today or tomorrow :-(

This has been happening to me also.  One time it logged me out and started installing updates  - I was in the same application all day actively working when this happened :-(

It just happened again, in front of my eyes.

But this time (and it must have been the same reason as those first two times), I have a clear idea of why it happened. My CPU/RAM was getting overloaded. (not CPU overheated - it was mostly RAM that was getting filled up) - i think a program started hanging (a browser, IE i think) and then suddenly the screen started going a bit beserk with windows flashing and distorting and trying to regain themselves, before the screen going to a blank black for a few seconds - all looking kind of like when the video driver crashes and it then goes black, before defaulting to a basic windows built-in vga driver or whatever.

BUT THEN IT ALSO DECIDES IT WANTS TO LOG OFF YOUR WINDOWS SESSION, LOSING YOUR WORK IN THE PROCESS.

I do NOT like this behaviour in Windows 8. What a stupid design - it sounds like the design of a tablet, not a workstation. Hmm, wonder why. If Win7 got overloaded, it'd just keep hanging/being frozen until you DO something about it. I want to be able to do my something about it. I want to be able to go to the task manager, force kill things and SAVE, MY WORK.

And if it's bad enough to have to turn the computer right off, I want to have that OPTION. Because usually it ISN'T that bad, I'm used to it and it's what I want, I expect overloading and me dealing with it to HAPPEN on my hardcore workstation.

Is there some documentation on this and information on how to disable this behaviour? What is it, might it be somewhere in the Group Policy area?

This is AWFUL and if I'm right about my theory of this being a tablet-oriented design choice, then I hope enough people appeal to microsoft to make them stop compromising their desktop product and I really hope this is able to be disabled because I might just be forced to go to the mac desktop OS after all these years if I keep losing my work like this.