Unwanted behavior

So here I am in between photo shoots, working on my computer. I've got a bunch of windows open, including some web pages which I'd opened at home, but will need to reference here where I don't have internet access.

My computer has been asking me to reboot (or rather, keeps telling me it's going to, and I keep telling it not to) all afternoon. First, once I say no, it shouldn't keep asking me every 10 minutes. What part of 'no' doesn't it understand? I suspended the machine for a while, and when I turned it back on, it took an unusually long time to start. I began to suspect it was rebooting. Sure enough, I was right. Now, I've been using computers for long enough to know to save my work periodically, which I did, especially before I suspended the machine, so I didn't lose any work. However, it's annoying to have to go back and open up all the programs and files I was working on. And more frustrating at the moment is that the web pages I had up, which I need to reference in order to do some of the homework I was going to work on until my next shoot, are gone. And without internet access, I can't access them again.

Is "the computer ate my resources" a valid excuse for turning homework in late?

Why does Windows say "Saving your settings" when it's shutting down when it's not? If it was saving my settings, it should start back up exactly as I left it - all the programs open, all the files open, even cursors in the same place. Why can't they build updates that don't require re-boots? And if there really is some fundamental reason they have to reboot my computer, why can't they write code to really put my work environment back the way I left it when it's done? I shouldn't even need to know the computer re-booted.