In order to ease the load on their servers and allow users to upgrade faster therey invented Windows Update Delivery Optimizatio
Oh Yeah?   A faster Upgrade eh?  Dunno where they get that idea.  I've been downloading the 'install from USB/Disc tool [which includes Win 10] for the last 15 hours and it is only 9% complete. 
If that's faster I'd hate ter see wot fechen slower's like.  Goin' at a snail's pace, init!
   Goin' at a snail's pace, init!
Maybe that's cos I got more going up than coming down?
And before anybody reminds me that I'm not convinced about upgrading to Win 10, the idea is that if/when I have decided to do so, I'll have a 'once-downloaded' media installation that'll service all my machines instead of having to update each individually.  It also allows for a clean install rather than an over-the-top upgrade, which I'd prefer anyhow.