Windows 10: Can't boot from USB while in UEFI mode Dell pre-build PC

Hello,I am trying to get a fresh install of windows on a new SSD for my friends crappy Dell PC that had only an HDD.Initially I could only get it to boot from my new USB installation media while in Legacy mode, and went through a full install and it works fine in Legacy. I discovered I cannot switch to UEFI after installing Windows on the SSD while in Legacy mode. So I would like to do the install while in UEFI.However, when I attempt to boot from my USB with Installation Media on it while in UEFI mode, the USB option under the Temp Boot Menu says it cannot find installation media.Do I need a

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Can't get a UEFI PC to boot a Windows 10 Enterprise trial bootable USB

Hy guys, on a UEFI PC Asus g752, a Windows 10 bootable usb is not recognized during boot time. The PC has Secure Boot Disabled and CS mode enabled in the BIOS/UEFI.

The bootable USB was created using Rufus and I tried all options including MBR/UEFI and GPT/UEFI ,

both using FAT32. I use the 90 Day Trial Windows 10 Enterprise available from microsoft.com.

The option named "MBR for BIOS or UEFI-CSM" does not work neither with its difference being that it forces the USB into NTFS mode vs the other two options, which allow it stay in FAT32 ...

The UEFI Asus pc will not boot from that USB, using the "Flash" selection during boot and ends up in black screen with cursor blinking.. Also this same USB

will not boot on a non-UEFI Dell laptop neither resulting in the same black screen with blinking cursor ...

Now, creating a bootable USB with the official Microsoft tool : MediaCreationToolx64 still cannot boot the UEFI Asus PC with the same blinking cursor result ... however it will boot the other non-UEFI Dell Laptop.

How can I create a bootable USB for that UEFI Asus PC ?

 

Failing to install Windows 10 in UEFI boot mode

Hi

I’ve been reading articles in this community and others the last couple of days and I’m getting more and more confused.

I have made my first build with the following equipment:

Asus Prime Z370-P (Bios version 1002x64, firmware 11.8.50.3470)

Intel Core i5 8400 2,8GHz

Samsung 860 EVO Series MZ-76E250B 250GB

and other..

I purchased a Windows 10 Home Eng Retail licence on USB directly from Microsoft.

When installing Win 10 it always ends up being installed in Legacy BIOS mode.

First time, I only followed the instructions on screed and had a successful installation, but in Legacy Bios mode.

The second time I made the following change the UEFI:

Boot\Secure boot\OS type = Windows UEFI mode

Installation was still being made in Legacy Bios mode.

Third time

Boot\Secure boot\OS type = Windows UEFI mode

When Win 10 installation started I entered the cmd prompt and made the following commands in order to change to gpt

Diskpart

List disk

Select disk 0

convert gpt

Exit

I then continued with Windows installation which still ended up in Legacy Bios mode.

I’m getting crazy and I don’t know what I’m going to do : (

What do I need to change in the UEFI?

What do I need to do to prepare the disk for UEFI mode?

Is my purchased Windows 10 USB key prepared for UEFI mode?

Can someone describe, step by step what I need to do?

 

Dell UEFI USB Boot

Hi all,

Sorry if this question has been asked before. I have already gone through a number of fixes but nothing seems to be working for me so far.

I have been provided with a USB with an MDT image on to re-image a number of PCs but soon realised it was formatted in NTFS due to the .WIM file being so large and Dell UEFI with Secure Boot will only boot from FAT32 which we need to use now as a directive from Management. I have tried splitting the .WIM into smaller .SWM files and moving back to the original location on the USB but this failed and also attempted to copy the USB data onto a multi partition USB 1GB as FAT32 and the other 57GB in NTFS which was recognised at boot but failed straight away. I am learning as i am going along here so please bare with me. Has anyone any other suggestion on what i can try here or am i fighting a losing battle?

Many thanks,
Matt.