[SOLVED] Booting OS from M.2 in Asus Prime-A Z390

[sash72]

Hello

I will soon assemble a gaming Desktop.

My Gaming Reg Specs are:

• Intel Core i5-9600K
• MB Asus Prime-A Z390
• Samsung 250GB 970 EVO NVMe M.2 (planning to make it my first OS boot)
• Crucial 32GB DDR4 2666MHz Ram
• EVGA GeForce RTX 2070
• PSU EVGA SuperNOVA 850W

I am planning to install Win 10 64bit OS on the NVMe disk..thus make it my first boot.
I have read several posts from fellows, trying to do that. some succeeded, while others wasted dozens of hours in tweaking.

it seems that the procedure for that isn't easy. the task involving in changing from MBR to GPT, and be in full UEFI Mode as what i understand..beside NOT to install any SATA drive (HDD or SSD), untill you finish installing Win 10 on the M.2

Here i need your generous help please, by pointing to the steps i need to do, as well mention any Bios configuration changes shall be made..all in plain..kindly

I am sure that many others willing to understand the way to achieve this goal.

Thank you all for your time
Best

 

[karenjoly]

Here you go

Create an up to date USB install media by following these steps:

https://www.microsoft.com/en-ca/software-download/windows10

Then disconnect or disable all hdd /ssd drives but the one where you will install windows.

Insert the USB media tool, with the windows install files, into the board. Next startup and go to the board setup and ensure the board is configured to use UEFI boot settings, that CSM is enabled and that SATA mode is set to AHCI.

On the motherboard boot device menu, select the command that identifies both the firmware mode and the device. For example, select UEFI: USB Drive or Windows Boot Manager: USB, and list that device in the first boot slot on the board.

Reboot. Install begins.

When choosing an installation type, select Custom. On new disks, the drive will show a single area of unallocated space. If there are partitions, select each one and then "delete".

Select the unallocated space and click Next. Windows detects that the PC was booted into UEFI mode, partitions the drive using the GPT and begins the installation.

NOTE: Any data on the drive will be lost

 

[sash72]

Thank you for well reply, Karenjoly. i will perform your steps soon enough..even i am not sure what do you mean by "select the command that identifies both the firmware mode and the device. For example, select UEFI: USB Drive or Windows Boot Manager: USB, and list that device in the first boot slot on the board "..i mean which one to choose
I will move ahead & do the things..them inform everyone here with the result.

Thank you again