Probably a bit late, but if its any help to anyone, make sure the folder is on your C drive. I originally had it on my E drive, and got exactly like you experienced. Just starting an update and hopefully will have win10 within a couple of hours.I cannot get this installer to work. I'm on Windows 10.
I extracted the .wim to it's own folder using 7zip, I then run W10M_Installer.exe as an administrator.
I type in Lumia63X into the device text box (my device is the 635.)
Click start; it says "are you sure you want to start upgrade process? Press OK to start!"
So I press OK and nothing happens. It doesn't try to detect the device, nothing.
Today I am publishing my second program!
Windows 10 Mobile Installer!!!
Here's the download link
---------- Post added at 03:23 PM ---------- Previous post was at 03:21 PM ----------
Worked like a charm on My Nokia lumia 620.
Gave errors, didnt work at first but after factory reset I tried again and it worked. Thanks.
The phone should restart and show you spinning gears, WAIT AND DO NOT DISCONNECT YOUR DEVICE! IT WILL TAKE 1 HOUR OR MORE TO COMPLETE!I'm on lumia 520 and started the update, he copied 132 files and now is stopped for 30 minutes on the word "update started" .... what should I do?