Well, it had a doze on startup again today but not for nearly as long and also not a total freeze at times.
It would appear that m$ really do want to force updates. Ba$tard$!
From what I've read, I think that's correct.
The Windows Update that offers Win10 can be told to Fuck Off, but it re-appears in a slightly re-morphed form a short time later.
It's been described as behaving like malware, on account of it's ever-changing properties, and whatever you did to tell it to Fuck Off last time no longer works.
I'm slightly insulated from it because my home network is a Windows Domain, and I have Group Policies in place.
MS seem to have decided not to piss of their corporate clients by having the Win10 pop-ups on all the Domain PCs, and having random end-users trying to update.
But if you are not on a Domain, I think that no matter how many times you say 'No, thank you' to that particular update, it's going to re-appear like a virus.