@FrenchPress i send him all information in last post here how to install linux some link movies if he not understand and link with tutorial for his version laptop.
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Thank you 
You have been very helpful on the forum lately.
Much appreciated 
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I just research on google. Nothing special. I know some people don't want waste a time for searching how doing some things. Yes forum is helpfull but I understand also Linux working out from the box - that when they have a Pro and support.
I am a simply a man volunteer. Besides I am using a link and movies because you know my language is not a good.
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Sharing is beautiful 
Yes you should change it to ahci, also make sure you try a different usb drive. I remember i have 2 usb drives. 1 is from sandisk which works with every linux distro out there and i have 1 from mediarange (if i remember the brand right) and that one refuses to boot with linux on some machines.
Edit: Yep its a MediaRange USB Stick, USB 3.0, 64 GB, Zilver. I don't recommend that stick for linux installation.
This one works great SanDisk Ultra Flair USB 3.0 Flash Drive - 16GB
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For future reference, it is always a good idea to check the SHA256 of the downloaded iso against the reference checksum published on the Zorin website, to verify the download is not corrupted. See item 1 in this pre-install list:
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There is no option that shows discrete GPU so I can not disable or enable it.
I checked the BIOS many times under the Built-In Devices Options and there is nothing there related to graphics! Here is screen shots for that page:
Nothing worked my friend
Please note that I was able to install Zorin as shared before. The problem is not installing, the problem is that Zorin is not starting correctly as you can see from the previous screenshots which very clearly indicates it is a GPU problem because Zorin got installed.
It is about Ubuntu 16.04 but should also work for Ubuntu 20.04 (which Zorin is based on). Curiously, Legacy BIOS setting is recommended.
Re: HP Zbook 15 G3 - ubuntu 16.04 - very annoying acpi issue
https://ubuntuforums.org/showthread.php?t=2328988&page=2
Hi there,
I have testet a lot and and can confirm that Ubuntu 16.10 works out of the box.
In Ubuntu 16.04 it works for me if I
1) Change so I use NVIDIA binary (I use version 367.57) instead of Nouveau driver (which gives a GPU lockup or something)
2) Set pnpacpi=off in the boot (and remove the quiet splash etc stuff)
This can be done from GRUB pressing 'e' and replace "ro quiet splash" etc with just "ro pnpacpi=off" and booting pressing F10
To do it permanently edit /etc/default/grub to have
GRUB_CMDLINE_LINUX_DEFAULT=""
GRUB_CMDLINE_LINUX="pnpacpi=off"
and do 'sudo update-grub'
To get into the system and make the changes I had to boot into rescue ("rescue" as parameter in GRUB).
BTW - in the process of experimenting I also had to temporarily disable graphical startup. I did this with
sudo systemctl set-default multi-user.target
and then I only had a prompt where I could do this to start graphics manually:
sudo /etc/init.d/lightdm start
To revert to graphical startup do:
sudo systemctl set-default graphical.target
This is all with these BIOS settings:
1- change the UEFI boot option to legacy boot option
2- change the Hybrid Graphics option to Discrete Graphics option
Last edited by jacob-nordfalk; November 16th, 2016 at 09:20 AM.Thanks for the links. I installed and verified as explained and it seems sha265 checksum identical.
Here is for the downloaded file:
69E1BE7E078C401E7991FFF2E8A5F854ED04EBABA7A1B98A74D552644AA9F523
And here is from Zorin website:
69e1be7e078c401e7991fff2e8a5f854ed04ebaba7a1b98a74d552644aa9f523
It is exactly the same, but only letters are small, not capita which I don't think it makes difference.
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My BIOS is already set to Legacy boot.
Also, Wake on LAN should be "Follow Boot Order"
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Did you try this during the boot?
I wanted to try Linux for the first time in my life with the Zorin OS 16 but it was problematic experience from the start.
I think I gave it enough troubleshooting time so maybe it is time to just give up and go back to Windows 11.
FrenchPress thanks for trying to help but I do not know what you are talking about!
You can press "e" key to get to the grub and edit the boot parameter as in direction. This is supposed to solve your graphics problem.
Thanks for everyone for trying to help but I do not think all this time in troubleshooting is worth it to just try Zorin so I need to end this now. I might come back again in the future when Zorin 17 or v18 when it is solid and easy to install just like Windows, smoothly and without any problems
Thanks again for your efforts and good night.
OK I will try one last time, just for you. So when I should press e?