Xenserver - Edit grub.conf of halted VM

If a VM doesn’t boot due to an incorrect grub configuration, you can use the xe-edit-bootloader script in the XenServer control domain to edit the grub.conf until the config works, example:

xe-edit-bootloader -n "VM Name" -p 1

This will open the grub.conf file of the specified VM in nano editor.

Remove GRUB from Windows

Put the Windows Install Disk into the drive and boot it up, select your language, select repair, select which partition/instalation to repair, click open Dos (last option on the list), type the following:

bootrec.exe /FixMbr