Sorry been outta town or I would have replied sooner.
You mentioned that you tried the steps I posted, however to me [please correct me if I'm wrong!] it seems that you rebooted your computer using the new USB drive (created using the Media Creation Tool) instead of booting normally into the
'failed' Windows installation. Re this notification:
- the upgrade option isn't available if you start your computer using Windows installation media. If a copy of Windows is already installed on this computer and you want to upgrade, remove the installation media
and restart your computer
For this to work you should restart your computer and get back to the crappy desktop that only shows the Recycle Bin or such (at least this is how mine was). You won't be able to do much of anything but at this point [make sure that your Windows 10 USB is inserted by the way] you will still be able to perform some steps.
Don't try to open the Recycle Bin, don't try to right-click on the desktop for other options. Just use the Windows button on your keyboard
and
also press the "R" button at the same time [so Win button+R] and this will open a "Run Dialog" box.

Now type "cmd.exe" which will open up Command Prompt such as this:

This example shows that the F:\ drive is currently active but you should ignore this as its just an example pic/photo.
- Your Windows drive is C:\
- Most likely (or not) you also have a DVD ROM drive and/or additional drives that will be D:, E:, etc etc
Again, make sure that your newly created Windows 10 USB has already been inserted. The program you need to be looking for is called
setup.exe
- If you're not sure which drive this is located on you can type:
- dir d:
- dir e:
- dir f: etc, etc. On most general computers it will be on the 'e: drive'
- One of these will list the setup.exe program
- After this just type in "e:\setup.exe" and hit enter [again, your hard drive letter may be different]
Now Windows 10 will begin the upgrade/etc process and then ask you whether or not you want to perform a full/clean install and/or keep your personal files/data. Of course choose 'YES' and then continue.
AGAIN MOST IMPORTANT: DO NOT BOOT YOUR COMPUTER USING THE WINDOWS USB!!! Probably better to remove the USB drive before turning your computer back on, then insert the USB after you get back to the crappy "nothing works" desktop. And then
follow the steps.
- I suggest that you print out these instructions on another computer before you try this
- Myself I dislike wasting paper but when I have MAJOR issues this is what I do. I read, read, and then read again
- I'm a young dude, only 51 years old
Unfortunately I cannot replicate this because I just don't want to! NO WAY I want to deal with this again. However this solution worked for me. I mentioned (I think) that whenever any major updates arrive it would be better (in my opinion) to perform
'in-place' upgrades instead of this ****.
I wish you well, sorry for the long/late reply... also sorry for the HUGE reply hope it helps :)