I have the same problem and am too stubborn to quit.
Lenovo Ideacentre
Win 7 Home Premium
8 gigs ram
3ghtz intel i5
Radeon 6450 4gig
I've tried pretty much everything at this point, short of a clean install. I'm looking at my 7th time trying to update last night and i'm about ready to give up. Windows did say that Win 7 users would have no problem upgrading to Win 10 without any hardware upgrades, so you can see why I'm fairly disappointed. Am so excited for 10 too...:crying: