Can't boot windows install USB in UEFI mode

mikee286 said:

I'm trying to reinstall windows 10 on my computer. The first time I installed windows it was done in legacy mode and worked find. That was 3 years ago now. I made a bootable usb with the windows media creation tool and tried to boot it using UEFI and the ASROCK logo comes up for a few seconds and then the screen either just goes blank and monitor goes into standby or the system reboots.
I can boot windows install using legacy mode and it goes into setup just fine. I have also tried booting the usb on my laptop which automatically boots using uefi and it works just fine there.
Other things I have tried include trying another usb drive, different usb ports, disabling legacy CSM mode altogether. I tried resetting the bios to default, I tried booting a linux mint live usb using uefi and that worked but for some reason my windows install usb will not boot. I tried making the bootable usb using the windows media creation tool and also with rufus and have tried 4 different flash drives of 3 different brands 2 sandisks a lexar and some no name cheap thing all give the same result.

One peculiar thing though I did try downloading an older iso of 1909 and put it on the usb using rufus and it booted fine in uefi but I really don't want to install a version that old on my PC if I don't have to. Anything 2004 and newer won't boot in uefi mode.


My specs are Ryzen 5 1400, ASROCK AB350 PRO4 motherboard, 16GB Corsair Vengeance LPX DDR4 2400, Crucial MX500 500GB SSD, Old random WD 500GB HDD, Seagate 1.5TB HDD, Zotac Geforce GTX 950.

Why not use MCT to create a fresh USB instead of using Rufus? That way it would boot in either MBR or UEFI.

When I use MCT to create the bootable USB drive it's usually formatted FAT32 [which has a Windows drive-size limit of 32GB], which can affect booting MBR or GPT.

mikee286 said:

MCT was the first thing I tried then as a backup I tried rufus neither worked. I tried the default settings in rufus (bios and uefi) and GPT uefi only. Nothing seems to work except for the old iso and rufus for what ever reason. I should note that all these USB configurations boot using uefi on my laptop just fine.

Sorry I didn’t read you original post correctly.
When you get to the BIOS boot menu are there multiple versions of the USB to choose from?

Berton said:

When I use MCT to create the bootable USB drive it's usually formatted FAT32 [which has a Windows drive-size limit of 32GB], which can affect booting MBR or GPT.

I thought the MCT reformatted the USB at the start of the creation process. It doesn’t?

SoFine409 said:

I thought the MCT reformatted the USB at the start of the creation process. It doesn’t?

Yes, it's supposed to which is the reminder it will first be cleaned and any data on it will be lost.

mikee286 said:

Yes there are 3 USB boot, USB UEFI Partition 1, USB UEFI Partition 2

Obviously you’ve tried all three, right?