Can't boot to GRUB (dual boot)

[chortlemortal]

I have installed Linux Mint side-by-side with the pre-installed win10 on my HP Envy 32 A!O.  The problem is that it does not boot into GRUB (so I can select Windows or Linux) but always goes straight to Windows.

I have

- turned off bit locker (in windows)

- disabled secure boot  (uefi bios)

- enabled legacy (uefi bios)

but it still does not work.  

I see that 'Intel software guard' is enabled.  Should I turn  that off?  Any ideas?  Most solutions I see online tell you what to do  once you get to GRUB.  I cant' get to GRUB.  That is my problem.

Does anybody have any ideas?  Has anybody made this work?  

Thanks,

David

[Echo_Lake]

@chortlemortal

Thank you for posting on the HP Support Community.
 

Don't worry as I'll be glad to help, As we have limited support boundaries in the support community as of now.

I would request you to reach out to our HP Smart Friend Support and our Support Engineers should be able to sort this out. HP Smart Friend Support can be reached by clicking on the following link: www.hp.com/contacthp/

Please feel free to contact us here anytime you need any further assistance. Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

[chortlemortal]

One reason I am  asking the question here is that I was sent to HP Smart Friend Support and they told  me that HP does not support Dual Boot  Windows/Linux and  could  not help me.

I said  I found this  a ludicrous position.  If they didn't support this could they  just  provide me  with more information about the UEFI BIOS so I could make it  work  myself.   But they basically told me to go away. No help at all.

I have previously had dual boots on HP Z400 and Z800 family machines - but hey didn't have this darned UEFI BIOS.

Frankly, I  find HP's  position on  this deplorable.   And  Echo_Lake has  not helped because  HP Smart Friend is not interested in helping  me.

[Echo_Lake]

@chortlemortal

Thank you for remaining patient. I want to thank you for taking the time to speak to us today. 
As you aware that we do not support dual boot hence it doesn't fall in our support boundaries. 

Click here: https://support.hp.com/in-en/document/c00042629 to know more about Updating the BIOS (Basic Input Output System)

Please feel free to contact us here anytime you need any further assistance.

Have a great day ahead!

[chortlemortal]

Here we go again.  Another copy and paste of generic information that in no way addresses the problem.  I really wish you guys on staff at HP wouldn't post these useless replies and remain silent when you have nothing to contribute leaving space for more knowledgeable people in the community to offer help.  This keeps on happening.  Seemingly you want to provide an illusion of help without actually providing any help.

The only reason to reflash the BIOS would be if there were bugfixes or enhancements in the new BIOS.  But since I am running the latest F.20 Rev A this does not apply.

The problem is that the UEFI boot only shows the Windows Boot manger in the list of EUFI or legacy devices when F9 is pressed on bootup, so there is no way to choose Linux.

[Echo_Lake]

@chortlemortal

As I mentioned earlier this issue is out of our support boundaries line, you can check with Linux for dual boot support.