Unable to boot Windows10, "A recently serviced boot binary is corrupt"  

This is a tutorial on custom install:

Custom Install Windows 10
How to Restore Files from Windows.old Folder in Windows 10



If you have another flash drive you can:

a) test the drive
b) use third party software to see if there is any impact on the boot
(see post #3, step #3d)


Microsoft had had a possible repair for registry problems: Regback
It was useful up until 1803.

Please use the feedback hub to communicate with Microsoft to restore the automatic Regback feature:

https://docs.microsoft.com/en-us/tro...regback-folder

https://support.microsoft.com/en-us/...3-f66612949332

The tutorial says I need to install on the primary partition, though this warning comes up if I do.

What should I do here?

We've gone through many troubleshooting steps.

You will see either:

a) automatic repair > srttrail: A recently serviced boot binary is corrupt.
b) where do you want to install windows


I'll see if others are available to comment later today/tomorrow or you can custom install.

I was starting the custom install, that's what my last image is referring to, though I'll wait if you think there's another workaround we could try

I'm going to see if there are other ideas.

Unfortunately you only have the one flash drive.

Another flash drive could allow additional trial and error steps:

a) Macrium boot rescue
b) backup files > try any step
c) test drive
etc.


For custom install:
The BIOS is UEFI and the drIve GPT > see the tutorial step #9.

Am I able to try these steps with my external hard drive?

I'm not aware of any method with an external HD.

You can have windows backup files like a reset save files, manually save files using notepad, or use a bootable ubuntu flash drive to move files with a GUI interface.

The custom install is the most efficient option as it backs up the files to Windows.old and installs a fresh version of Windows

I guess I can buy another flash drive tomorrow and try the other options.
Though if you recommend a custom install, do you know what I should do about the warning I posted?

It may be possible to delete some unneeded files on the drive.

These are some options with a normal boot:

Free Up Drive Space in Windows 10

https://support.microsoft.com/en-us/...up-drive-space
https://support.microsoft.com/en-us/...up-drive-space
https://support.microsoft.com/en-ca/...feature-update


Maybe some files can be copied and pasted to the external HD followed by delete.
Or cut and paste.
Sometimes though the error message is not clear.


What needs to be determined is how much drive free space is needed to create the Windows.old folder.


See if you can create > 40 GB free space by cut and paste to the external HD.

Please update your plan.