Windows-Update Reboot-Orgien?

In /etc/default/grub
change
<code txt>
GRUB_DEFAULT=0
</code>
to
<code text>
GRUB_DEFAULT=saved
GRUB_SAVEDEFAULT=true
</code>

https://unix.stackexchange.com/questions/144464/reorder-grub-to-list-windows-on-top