Grub broke Windows bootloader?

[gold_finger]

@goldfinger.

My take on this thread was that when Windows was selected. Grub would point to Windows grub bootloader and Windows bootloader would take over from there. But. Windows would stop booting. Due to a malformed boot loader situation inside of Windows.

That's exactly what I was thinking too, but when OP sets the Win8 drive to boot from BIOS (instead of Mint drive) then it does boot correctly.  That's why I'm confused.  I would think that if the Win8 boot code was messed-up causing boot to fail when grub passes on to it, that it would also fail when BIOS set to the Win8 drive with that same code.  Am I wrong about that?  Doesn't make much sense to me to work one way and not the other, but I haven't messed around much with Windows in last 5 years -- so I could be wrong.

Edit:  Scratch everything I wrote above.  Got my posts mixed up.  Above applies to another post on a different forum.  Sorry.


@rokytnji,

Regarding Boot-Repair utility -- is there an option on it to fix a Windows boot loader, or to replace grub with Windows boot loader?  I've never used it myself, so not familiar with the options.  Like you said, the Windows boot code is messed up; so reinstalling grub won't fix that.  If OP has a Windows recovery DVD or something, that could be used.  Otherwise, I think running the
[pre]

Code:

sudo dd if=/usr/lib/syslinux/mbr.bin of=/dev/sda

command will work.  Not 100% sure of that, but pretty sure.[/pre]