Rewriting VBR is usually not needed, except if you accidentally (or intentionally) write e.g. GRUB to VBR of Windows' Active Partition. In this case BootRec /FixBoot is also required to successfully resume Windows' native boot chain.
Rewriting VBR is usually not needed, except if you accidentally (or intentionally) write e.g. GRUB to VBR of Windows' Active Partition. In this case BootRec /FixBoot is also required to successfully resume Windows' native boot chain.