Reboot to windows after install

[Forpli]

I'm not sure if these links can help you. For some computers which booted into BIOS or Windows they helped.

Boots to BIOS after installing Zorin OS

@Chris710 ACER BIOS are often special. In your BIOS you must set a supervisor password in tab security. Once the supervisor password is set, some new menus are accessible. Enter the "Select an UEFI file as trusted for executing" menu. It will allow you to declare the newly installed Ubuntu (=Zorin) boot image as trusted.

Is ubuntu set at first position in the boot order?