How to fix boot when grub is installed and grub is broken?

michael diemer said:

Like I said, by the time you try this or that fix, you could have reinstalled Mint. Reinstalling Linux is not a big deal. Reinstalling windows another story!The various tools to fix grub usually do work. but usually means not always. Your situation was one of the "not-always" ones.

Solved only by a reinstall, not ideal.
And that one program cannot get needed file updates as the website referenced errored the apt get command.
I know win 11 an easy way to reinstall, clone a drive of the same version, home or oem. Put the clone into another PC that already had windows 11 or 10 installed. It boots up as win 11 and is activated after redetecting all hardware. 10 or 11 keys for now MS considers the same and activation is dependent on hardware ID, not software based in the OS
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Worked for me from an AMD desktop to an Intel Dell laptop. And all the installed programs are ready to go on the changed hardware.
And it is pretty quick for windows to be back up and running.

sdowney717 said:

Solved only by a reinstall, not ideal.
And that one program cannot get needed file updates as the website referenced errored the apt get command.
I know win 11 an easy way to reinstall, clone a drive of the same version, home or oem. Put the clone into another PC that already had windows 11 or 10 installed. It boots up as win 11 and is activated after redetecting all hardware. 10 or 11 keys for now MS considers the same and activation is dependent on hardware ID, not software based in the OS
.
Worked for me from an AMD desktop to an Intel Dell laptop. And all the installed programs are ready to go on the changed hardware.
And it is pretty quick for windows to be back up and running.

That's pretty cool! Something like it is s possible on Linux. you just make a system image with, for example, Clonezilla, which can then be restored. Done it many times, but that method you described is very nifty.