:emotion-2:

Windows 10 | How to Fix Error Code: 80240020

https://youtu.be/UxnmB6U7BhU

Tried that and more. That one, all it does is reload the files and starts again.

Latest fail is this:

I'm beginning to think it might be h/w related. I am running off of an SSD. I still have the ORIGINAL 1TB drive in the computer and the old C: partition is not used. Device Management capture:

The circled disk is my C:. E:, the OLD ORIGINAL C: is really hidden by the OS, but I'm wondering if there is a pointer to DISK 1 somewhere and it tries to find files there as it fails on re-boot?

Oh, I also now are going into an 'infinite loop'. Windows Update shows this after the reboot, install doesn't happen, and I wind up back in Win 8.1's desktop and open Windows Update:

Wonder what is going on?

Thinking it was a problem due to DISK0 and DISK1 and I wanted to install W10 on DISK1 I took out the other 2 drives and tried. Didn't work either??? DISK MANAGEMENT now:

At a complete loss here?

I think you may be on to something with the disk 0 - disk 1 thing.  Although I am on different hardware, I too cloned my OS to an SSD on disk 1 and have the original 1TB hard drive in there as disk 0.  I did completely reformat the hard drive so it should not be possible that any old partitions are negatively affecting the install.  I even tried disconnecting disk 0 and I still get the errors.  At this point, I continue to research and am enjoying Win 10 on other machines.

Well we probably do have the same problem I guess. Isn't the drive0/1 thing it seems as I've reconfigured and it didn't help, unless there is a pointer about that hidden somewhere?

Odd part was when I exchanged Drive0 and 1's SATA port I forgot to change the BIOS and it booted to the original C: Wonder if I should have tried to update that?

Post back here is you get it 'solved', I sure don't have it.

I'm in the same boat... XPS 8700 mid 2013.  Machine came from Dell with the OS installed on the spinner drive, for whatever reason, so I cloned to the SSD, leaving me with the same situation.  Same error.  I"ve tried everything I could think of and everything that seems to have solved the error code for others....some dating back to the same code given in effort to update 8.1 from 8.  And for what it's worth, I've tried using the Dell disk to reinstall 8.1.  Same error.  If I get it, I'll let you know...

Well, 1 hour and 33 minutes on the phone with MS...

They tried all the same things I did, Windows Update and  Update Tool. No fix... and they did add a Registry entry.

Locate the registry key: [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\OSUpgrade]
It should exist, but if not, create it.
Create a new DWORD (32-bit) Value with Name = "AllowOSUpgrade” (without the quotes), and set the Value = 0x00000001.

Did not help... MS should call back in 2 to 3 days.

im stuck with the same problem. and lol this is after i got rid of a virus onn my computer so this is really frustrating :(

Well I had another idea. I'll use the UPGRADE tool to create a USB drive for installing.

Well, it 'sort' of worked. It went through the normal stuff and started a reboot. Boom, Installing Windows. It was ALL downhill from there...

Asked for my license, which of course I didn't copy down, but I noticed later that if it was in your BIOS you can skip it and it will be found later.

Next I was asked if I wanted to keep my existing programs and data or a fresh install. Did the keep.

Next step was more confusing. Seemed to say I should remove the USB drive if that is what I was using and continue. Next screen asked for missing drivers and if I had a USB/DVD with the media I should insert it. Never found anything. Maybe I miss understood the prior message, don't know. I did NOT boot from the USB drive but ran from it SETUP while W8.1 was booted. Maybe that had something to do with it. At that point I just cancelled by closing it. Got the message it was rolling back and up came the W8.1 desktop.

I think I'll wait to hear from MS before I go mess with this again unless someone else gets it to work this way. I have NO confidence it will work. I do keep drive back-ups though.