On Windows, an update is a long download, then lots of reboots where the computer is busy doing who knows what.
What's even worse is that "update and shut down" can lead to a 10-20 minute wait the next time I turn on my computer.
That's one of the most user hostile things I've ever seen in a software product.
Ironically, after the Anniversary update we could at least set the working hours but it's still limited to a 12 hour block. Is it really too much to ask to only allow updates/reboots from 1:00am to 6:00am?!?
I'd like to think if any of this happened to the CEO of Microsoft, this crap would get fixed right away.
Another peer of mine lost his networking stack functionality when his update pushed through.
The update/telemetry/user friendliness situation has not been fantastic, even for some of us internal engs.