@Patte_DK:
After having checked the original BIOS I have realized, that it natively does fully support booting off an NVMe SSD.
Here is the proof:

Consequence for you: There is nothing to for you regarding the points 1-3 of my guide (no BIOS modding and no risk while trying to flash the modded BIOS). You can start with point 4 of my guide.

EDIT:
Just to get you informed about the result of your BIOS modding work I did a look into the BIOS, which has been modded by you.
Result: You obviously used the wrong tool, because a Pad-file, which was located within the original BIOS at the end of the "DXE Volume", has been removed by your modding procedure.
Please compare both pictures, which show the downmost end of the "DXE Volume" of the BIOS (left: original BIOS, right: your modded BIOS):

And this is how the same BIOS part looks after being modded by me using the AMI MMTool v4.50:


Conclusion: It was a good idea to ask me for doing a look into the original BIOS and the one you had modified.

Zitat von Patte_DK im Beitrag #4843

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by the way your paypal link expired

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@Patte_DK: Since I have edited my last post, it contains now more information for you.

@Patte_DK:
No, you should not flash any of the NVMe modded BIOSes, because even the correctly inserted NVMe module may have a negative impact on the function of the other already natively present NVMe modules.

Zitat von Patte_DK im Beitrag #4846

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will you drop the moddet bios in my dropbox?

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Zitat von Patte_DK im Beitrag #4846

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thanks a ton for your help so far !

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@niro:
I see 2 possible reasons for your problem:
1. You didn't execute the required settings within the BIOS
(e.g. by disabling the "Secure Boot" and "Rapid Boot" options).
2. You made a mistake while trying to install Win10
(has to be done in UEFI mode using the GPT partition scheme)

Zitat von Patte_DK im Beitrag #4848

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when i boot into installer the nvme shows up and installs fine but in bios it never shows

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Zitat von Patte_DK im Beitrag #4848

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maby i should try the modded bios?

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Zitat von Patte_DK im Beitrag #4848

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will you upload it to my dropbox?

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@Patte_DK:
Please explain how you installed Win10 in UEFI mode.
What did the Win10 Setup show, when you had to decide where to get the OS installed? Did it show any partitions on the NVMe SSD? If yes, what exactly did you do? Did you erase all shown partitions and let the Setup create a new target partition for the OS? If yes, which size did you choose? What happened thereafter? Did the Setup create any additional partition by itself? If yes, which one of the shown partitions did you choose as target one for the OS?

@Patte_DK:
After having seen your screenshots I suspect, that you booted the USB Flash Drive (with the Win10 Image on it) in UEFI mode, but have't installed the OS in UEFI mode.
This is how the partitions of an NVMe SSD should look after a fresh Win10 installation:

Most important is the "EFI System Partition" (contains the "Windows Boot Manager"), which has a size of 99MB.
Questions:
How resp. with which tool did you create the bootable USB Flash Drive containing the desired OS Image?
Are you sure, that the USB Flash Drive itself had been FAT32 formatted and that the OS has been installed by using the GUIMode Partition scheme?

Zitat von Patte_DK im Beitrag #4852

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oh btw i found the secure boot, i had to enable win10 features.

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