I've setup Ubuntu via Wubi recently for a friend and he came back with a complaint: On reboots the Windows partition is always selected by default, figured this was just a need to update Grub but realized that Wubi writes to the Windows Boot Manager and does not use Grub.
Though this is technically a "Windows" question I wasn't able to find a clear answer for this.
How to do I modify the boot/selection order for Operating systems (Mainly Ubuntu via Wubi) on the Windows Boot Manager?