Throbbing Angel
this is no longer a place of honour
I've always found that whenever you boot up a Windows machine that hasn't been booted up for aeons, you're always in for a world of pain. It's running W10 Pro, by the way. I've turned it off a couple of times and it might be on its final download.
I used to cable it up to the router (quicker) and leave it to go at the updates overnight - total PITA.
Trouble is the incremental nature of updating innit. It is always easier to do little & often rather than skiploads once a year.
Even so - Chromebooks are great for updating - so simple & quick you hardly notice it.