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#11
Let's be sure:
You boot Windows 8.1.
You insert the flash drive.
Either it opens File Explorer or you open it and navigate to the drive assigned to the flash drive.
Double click on setup.exe.
Upgrade should start.
Do you have or did you recently install a SSD? If so, try this:
Found here: Solved Migrated OS to SSD now unable to do inplace upgrade - Windows 10 ForumsOpen regedit and go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control. Change the value PortableOperatingSystem to “0” from 1. Close regedit and reboot.
This is what I was referring too, I asked you if you used a usb flash drive or DVD, and that was your answer,
This is what comes up when I mount the ISO and click setup.
just tried to install by mounting it and it comes up with" you can't install windows on a usb flash drive using set-up" ??
Thanks
Still no joy in getting the windows 10 to install either by ISO or flash drive.
When I mount the windows.ISO using the integral windows 8.1 software it goes through everything until it finally tells me that you can't install windows on a usb flash drive using setup??
I then tried using a flash drive which I tried following all the Windows 10 - Upgrade Installations options, but still have the same problem, I did manage to boot from the flash drive but it was like a clean install , meaning I had to give serial which I have for windows 8 and wasn't sure if that would work ? but more importantly I was concerned that it would overwrite my existing windows , But didn't continue because I wanted to make sure that all my programs which is installed on windows 8.1 pro would still be there instead of having to reinstall them.
Any help to solve this problem would be greatly appreciated.
Regards,
Sam
You did steps 5 and 6 in this tutorial? Windows 10 - Upgrade Installation - Windows 10 Forums