Question Installing Windows 10 on M.2

Jan 12, 2021
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I am currently having an issue installing Windows 10 my Crucial P1 M.2 NVME. I have tried to use the guides posted online directing me to disable CSM, secure boot on Other OS, and deleting the Boot Keys. The method works and I am able to install Windows on the drive. However, when I reboot after the initial process, it takes me directly back to the Install Windows screen. When I tried going to the bios after restarting and turning back on secure boot and installing keys, the drive is gone again from my boot options in the BIOS. I’ve been at a loss for the past 4 hours, and would love any advice!

Note: I’m pretty sure my M.2 isn’t broken either because it shows up in the ASUS BIOS under “storage” even when it doesn’t show up as a bootable drive
 
Set up boot priorities in bios properly.
For UEFI install -
first entry has to be Windows Boot Manager,​
CSM disabled,​
Secure boot disabled,​
pcie/storage boot control - UEFI,​
sata controller mode - AHCI.​
For legacy install -
first boot entry M.2 drive,​
CSM enabled,​
secure boot disabled,​
pcie/storage boot control - legacy,​
sata controller mode - AHCI.​
 
Jan 12, 2021
4
0
10
Set up boot priorities in bios properly.
For UEFI install -
first entry has to be Windows Boot Manager,​
CSM disabled,​
Secure boot disabled,​
pcie/storage boot control - UEFI,​
sata controller mode - AHCI.​
For legacy install -
first boot entry M.2 drive,​
CSM enabled,​
secure boot disabled,​
pcie/storage boot control - legacy,​
sata controller mode - AHCI.​
I am using the UEFI install method with a flash drive with the Windows 10 install on it. I have also double checked and everything seems to be correct, but I still cannot see the M.2 after installing Windows and rebooting. I tried the legacy method with CSM as well on and actually showed the M.2 as a bootable option, but not as a partition and when o try to boot to it, the “insert boot drive and press any key” shows up.
Sorry, this has been very frustrating for me.
 
Jan 12, 2021
4
0
10
Set up boot priorities in bios properly.
For UEFI install -
first entry has to be Windows Boot Manager,​
CSM disabled,​
Secure boot disabled,​
pcie/storage boot control - UEFI,​
sata controller mode - AHCI.​
For legacy install -
first boot entry M.2 drive,​
CSM enabled,​
secure boot disabled,​
pcie/storage boot control - legacy,​
sata controller mode - AHCI.​
Here is an Imgur with the steps I took, including formatting the partition.
View: https://imgur.com/gallery/OFYQNWx