Recovery from Non Booting PC

None of the repair options to fix booting options is going to work such as Macrium rescue fix boot problems or:

Boot from the installation media, and then select the Repair option at the bottom of the screen.
In Repair, select Troubleshoot, then Advanced Options, and select Startup Repair.

The computer is getting past the boot stage that those options repair and it is starting to load Windows. The problem is in the Windows installation, not the boot files. Either restoring Windows from a backup image or a clean install is what it is going to take to fix this problem.

There may be another option, which worked with my daughter's computer when a bad update made her Windows fail to load (laptop computer). I booted into a Macrium Reflect USB flash drive. Made an image of her C: drive partition. I then restored that image onto a completely different computer (my desktop). The change in hardware was enough to kick out the problem driver that was causing her Windows loading problem. I did an in place upgrade repair install, ran through all the Windows Updates, cleaned up the install with dism /cleanup-image options. Then I re-imaged and restored the new image back to her laptop and it's been fine since then.

NavyLCDR said:

The computer is getting past the boot stage that those options repair and it is starting to load Windows. The problem is in the Windows installation, not the boot files.

Actually, Startup Repair fixes damaged system files that prevent Windows from loading.

Run Startup Repair in Windows 10

That has nothing to do with booting.

OldNavyGuy said:

Actually, Startup Repair fixes damaged system files that prevent Windows from loading.

Run Startup Repair in Windows 10

That has nothing to do with booting.

From your own link that you posted, I must disagree with you. In your link, it does not state that startup repair can fix Windows not loading. It states:

Startup Repair is a Windows recovery tool that can fix certain system problems that might prevent Windows from starting.

Further down the same link states:

Startup Repair isn't designed to fix Windows installation problems

However it does, indeed, also say this:

Startup Repair can only fix certain problems, such as missing or damaged system files.

But the system files being referred to are the system files contained in the system partition the computer is booting from - not system files contained in the Windows installation that make up the Windows installation itself.
@danadak's computer is actually starting just fine. It is loading the system files contained in the system partition. It is finding the Windows installation. And it is beginning to load Windows. The problem is that something with his Windows installation itself is bad. It could be a file that is corrupted. It could be a driver that is conflicting with a recent update. This is beyond the scope of the nearly useless Startup Repair utility which will only fix the system files in the system partition which start the loading process of Windows - and in most cases it fails to even do that.

Windows has to load system files in order to start.

The "system" partition in this case is the partition Windows is installed on...normally C:

"System" files live on that same partition.

It is not the same thing as the "System Reserved" partition.

In my experience, Startup Repair works well for the purpose it is intended.

Could be worth replacing the hives with the backups from system32\config\regbak, if there are any.

I would start thinking about how you're going to get your personal data off the system, in case you need to clean install.

One way is to create a Linux Live CD (USB), boot from that, and copy the data off the drive to a separate storage location.

The 10 Cleverest Ways to Use Linux to Fix Your Windows PC

Lots of other helpful tools on the Live CD as well.

For future use, there is a free little thing called regbak from ace logix which will do hive backups. Acelogix Software - Downloads

SIW2 said:

regbak from ace logic.

Nice tool.

If it was my computer, I'd put a new drive in it with a clean install of Windows 10 and convert the existing drive into a data drive.