As we near the last 4 months of the trade-your-paid-OS-for-datamining-OS offer from Microsoft, the already intrusive upgrade nagging has become
even more intrusive.
Now, instead of asking you if you want to upgrade, Microsoft automatically schedules when you will be upgrading the PC. Currently you can reschedule for a different date or cancel it (Although I'm sure it will re-schedule you again anyway, so why the heck bother with a "cancel" other than to get people to let their guard down.) but I'm sure that's just there to help the lawyers with angry lawsuits.
Imagine people on vacation with their PC left turned on (And since Windows 10 loves to cache itself on your computer, you don't even need it connected to the internet.) They come home and... wow, new OS with no intervention from them.
Hell, it's not like you even need to be on vacation for getting bitten in the ass by this.
I've never seen a company apparently hate their own products quite this intensely.