And still NO GO here yet! Funny thing I think I now know where the problem is namely since I had reserved a copy any other download will automatically fail on the spot until I see the MS Notification to download and upgrade! The combination 32/64 download at first and subsequent 64bit only was to provide the 32bit for VM use since the 64bit TP wasn't able to connect online when on VM Player that could see 10 run while booted in 7. Good way to get to know the newer while still running the older.
One article mentioning cleaning out the "C:\Windows\SoftwareDistribution\Download" folder and typing in a command at an elevated or run as admin command prompt and running the Windows Update tool then saw the "You will be notified" type message there as well as clicking on the 10 app's icon where the pop up also indicated the wait to be notified which still hasn't come in! The article posted earlier is seen at: How to Force Download Windows 10 for PC or Tablet
You can see how the Update message goes there and as previously posted how the pop up prompt appears. That was what was seen after following the instructions seen in the article on how to force the upgrade to work and tried more then once on both the 7 clone to second drive first, the clean install of 7 just seen to there.
Just a few hours ago I tried this out with the 7 host due to see Windows reinstalled anyways after a full two years since June 2013 to more or less clean things up. As you can see the download by way of receiving any notification lacks.
Someone on the other thread pointed to earlier suggested a possible compatibility issue which by that there is far from the case. Once I saw that I knew the ball was in motion BUT WHEN remains the obvious question and did it matter if I had reserved 10 back in June or not as to why any upgrade or clean install attempt has failed so far?
This by far has actually been the worst possible installation headache since I couldn't a bootable floppy image to see Windows 3.1 go onto a VM! Yet the OEM machine type upgrades are going well from what I have been hearing. Those with custom builds seem to be the ones who are having any real problems seen so far.
That's almost exactly what is happening to me except everything was downloaded 3 times, second time I forced it and third time was totally a surprise, I never did anything to initiate it. I have all the files, even made ISO out of first download. I can always do it manually but waiting for them (MS) to make my mind up. Have a perfectly good 8.1 on on disk and insider edition on another one, so no hurry.
That's interesting to see you were able to get the eventual results likely by way of automatic updates while the host 7 install I just tried it on downloaded the 64bit separately this time in iso form I saw written by the UltraISO app previously used enough times for 7 and 8 CP builds successfully write the 64bit 10 Pro iso to a second flash drive the first larger 16gb seeing the combo of both 32/64bit I have been using. The dvd burned was also a plain 64bit burned on the spot that saw a fail as well.
One issue brought up in the guide however was the need to unplug any non OSed drives like the pair of Sata III storage drives I have in an array! I found the $Windows~BT folder on one of them just now! ut ooooo..... Unpluggy time it is! The other things besides shutting down any system protections which includes AV and firewalls of any type is halting any other large processes including having the Valve/Steam running with web access in the background. This is why besides the need to unplug an unused flash drive if not booted from live later following the initial upgrade will be removed as well as disabling a number of start ups to upgrade over the host drive's 7 there in favor of keeping the fresh 7 install on the second OS drive going once everything needed is added on there.
So we can now equate a few possible reasons for the error message seen a couple of times while the others were hang ups during the restart process all indicating a failed install after the reset button with a few had to be hit! Extra drives you can unplug as well as limiting everything to the bare essentials on any 7, 8, or 8.1 having been in use for some time could very well avoid any mishaps.
I always unplug all other drives when installing OS or just doing larger upgrades.