First of all I followed the advice given in the links:
Dual Boot: Cannot boot into Ubuntu after Windows 10 Creator's Update
Just like they asked I repaired the grub using an ubuntu live disk and boot repair. And I uploaded the log to https://www.paste2.org/dlbCkaDc
And for some weird reason it got deleted.
If I reinstalled Ubuntu, that would technically repair the boot right?
UPDATE: Reinstalling 17.04 doesn't work, it still loads into Windows.
efibootmgr -v
indicates your boot order goes "USB, Windows, Grub (created in Windows), Grub (created in Linux), DVD, Network". So please double-check the boot order in UEFI settings. Where reinstalling Ubuntu has had no effect, it would make sense that this is the issue. Although FWIW, I'm no expert on booting. – wjandrea May 23 '17 at 05:20