Has anyone else had problems with Windows 10 'waking' from 'sleep' mode after installing an update? ?

Yes, and it pisses me off. In middle of the night, it just turns on by itself. The monitor comes on. That annoying Windows chime blaring loud AF. And I don't know if you've noticed, it doesn't just do it when from sleep mode. It does it when you've fully powered off, too. Literally the only way to keep Windows10 from turning your computer on whenever it wants is to unplug its power cord. 

For some reason it's even worse with my living room computer, a Dell which came with Windows10 preinstalled. Every morning I was coming out and finding it awake after I knew it'd been asleep the night before. So then I started intentionally putting it to sleep at night. Same thing. Then I started powering it off every night. But every morning, there it was on, monitor on and everything. So now after I power it down, I also hit the switch on my power strip so that there's no electricity going to it and I'm all, "Try turning my computer on now, stupid, annoying, super-shady Windows 10!"

Oh, and I did check with Dell because my living room computer is still under warranty and under a service contract. There's no fixing it. That's because it's not broken. Apparently, that's what it's SUPPOSED to do. Windows10 is just doing what Windows10 was designed to do-- wake your computer up or turn your computer on whenever the folks at Microsoft feel like telling it to, ostensibly because it needs an update, which Microsoft does by pinging your computer to see if you're actively using it and, if you are, then sending has accessing your computer in the background without you even realizing it and sending a bit of code that programs your computer to wake up or turn itself back on at some later time when it's asleep or powered off. Microsoft can get into and use your computer any time they want, and you give Microsoft permission to do that when you click the "agree" button after those thousands of words of tiny text that nobody ever reads and that only appear the very first time you use Windows10, which, of course, you have to click "agree" or it won't let you continue using your computer, unaware but probably suspicious that they've buried you giving them permission to do crap like that deep inside all those thousands of tiny words of text that they make sure is thousands of tiny words of mind-numbing and almost incomprehensible text exactly so that nobody ever reads it.