Question Can't boot Windows 10 in UEFI mode ?

[Buljic]

Hi everyone, hope u have a great day.
Here is the thing...

Right now I have Windows 10 PRO 21H1 (b1903) with MBR+Legacy boot.
System specs:

Asus Rog Strix B350-F
R5 1600X
XFX RX 570 4GB
16GB Corsair RAM on 2666MHz
Corsair Bronze 650W PSU

Since Windows 11 is coming I wanted to reinstall windows 10 in uefi+secure boot with ftpm enabled. But simply, I can not.
I've made bootable w10 media (Kingston 2.0 USB) and tried to boot from it. Partition 1 was USB:NTFS bootloader in my case, so I booted from there. It starts to boot, shows the Republic of Gamers logo, stays on it for a few seconds, and then reboots.
I have disabled Fast Boot, CSM, and secure boot. Boot mode is set to Windows UEFI but with all that it just reboots...

I was wondering, can my MBR Samsung Evo 850 prevent USB media from booting? Also, can DRAM voltage affect boot somehow? It's set on 1.2V

I have already installed windows 10 with gpt+uefi boot on some hp notebooks and it was quite easy to do, disable secure boot, delete platform key, reboot, and boot from USB, but this thing with my pc is starting to drive me crazy

 

[Koekieezz]

Hi everyone, hope u have a great day.
Here is the thing...

Right now I have Windows 10 PRO 21H1 (b1903) with MBR+Legacy boot.
System specs:

Asus Rog Strix B350-F
R5 1600X
XFX RX 570 4GB
16GB Corsair RAM on 2666MHz
Corsair Bronze 650W PSU

Since Windows 11 is coming I wanted to reinstall windows 10 in uefi+secure boot with ftpm enabled. But simply, I can not.
I've made bootable w10 media (Kingston 2.0 USB) and tried to boot from it. Partition 1 was USB:NTFS bootloader in my case, so I booted from there. It starts to boot, shows the Republic of Gamers logo, stays on it for a few seconds, and then reboots.
I have disabled Fast Boot, CSM, and secure boot. Boot mode is set to Windows UEFI but with all that it just reboots...

I was wondering, can my MBR Samsung Evo 850 prevent USB media from booting ? Also can DRAM voltage affect boot somehow ?, it's set on 1.2V

I have already installed windows 10 with gpt+uefi boot on some hp notebooks and it was quite easy to do, disable secure boot, delete platform key, reboot, and boot from USB, but this thing with my pc is starting to drive me crazy

When you're about to rufus the iso, is it set to GPT partition scheme and UEFI (non csm) for the usb drive for bootable? also try to update the bios and load default settings/reset and set CSM off (also fast boot). Then try to boot again. Usually i use rufus to make bootable with my win 10 iso (win 11 worked as well) and sucessfully boot to Uefi+gpt on my B75M HD3 motherboard. Try to re download the windows 10 .iso and make a bootable drive again with rufus (try to use chrome if you didn't).

Also try to update the bios to the latest if you didnt yet.

 

[Buljic]

Yes, I used Rufus to make a bootable flash with GPT UEFI (NON-CSM) option. Honestly, I am a bit scared to update bios, but it seems like there is nothing else to do.
I've already loaded default settings for UEFI but that didn't help.

EDIT
I am using brave, how browser can affect on this?

 

[Colif]

try installing it with secure boot off and you can enable it once win 10 is installed

it might be reason it won't boot USB

 

[Buljic]

try installing it with secure boot off and you can enable it once win 10 is installed

it might be reason it won't boot USB

I already did, you are not reading what I wrote
So, somebody told me that I can't boot UEFI installation with MBR schemed disk (Samsung Evo 850).
I will get an old hard disk drive, format it as gpt, and try to boot from USB again... I don't think it's gonna work, cause even MBR schemed disk should allow me to enter the installation setup

 

[Colif]

So, somebody told me that I can't boot UEFI installation with MBR schemed disk (Samsung Evo 850).

that is right but it shouldn't stop you installing off a USB.
that just stops windows booting off the ssd as it is.
the format of the destination drive has no influence on the installer.

if you run this you can convert it now without installing as GPT - https://it-infrastructure.solutions/how-to-switch-from-legacy-to-uefi-boot-mode-mbr2gpt-convertion/

 

[Buljic]

Already know about MBR2GPT, but I am not sure why I can not proceed to the installation screen on my pc. In short, I can not boot in UEFI mode.
If I convert my primary disk to gpt, I am not sure will I be able to boot from it, when I can't from usb drive.

 

[Colif]

lets try to boot it from inside windows then

put installer into PC with windows running

1. go to settings/update & security/recovery
2. under advanced startup, click restart now button
3. this restarts PC in a blue menu
4. choose Use a device
5. choose the USB from the list, PC should restart and boot from USB
6. install windows

 

[Colif]

wait, no, that won't work

it doesn't change boot method

 

[Buljic]

that is right but it shouldn't stop you installing off a USB.
that just stops windows booting off the ssd as it is.
the format of the destination drive has no influence on the installer.

This is what I am talking about... It should let me install the menu.
Instead, it shows the Asus Rog logo, stays like that for a few seconds, and reboot

 

[SkyNetRising]

I've made bootable w10 media (Kingston 2.0 USB) and tried to boot from it. Partition 1 was USB:NTFS bootloader in my case, so I booted from there. It starts to boot, shows the Republic of Gamers logo, stays on it for a few seconds, and then reboots.

UEFI installation media has to be in FAT32 format (not NTFS).

 

[Buljic]

Yes, but Rufus always makes a FAT32 partition with the bootloader on it... Let me host the picture
Take a look, it should boot from partition 1

 

[Colif]

have you tried using boot override in the bios?
its on the boot menu - page 3-19 - https://dlcdnets.asus.com/pub/ASUS/...OG_STRIX_B350-F_GAMING_UM_V2_web_20170606.pdf

USB format helps too, probably main reason in fact

 

[Buljic]

I've just tried boot override, no luck. I don't know maybe I am doing something wrong or my pc is faulty.
I've tried to boot on fat32

 

[Colif]

try another USB drive, it could be the actual stick itself

 

[Colif]

it might not be worth it... unless Microsoft increase range of AMD CPU that run Win 11, I don't think your CPU is on this list - https://docs.microsoft.com/en-us/wi...supported/windows-11-supported-amd-processors

So breaking windows to install it as UEFI might be a waste of time.

 

[Buljic]

I did, in fact, I am trying right now with sony... I have tried to change USB ports, 2.0, 3.0, 3.1...
I'm creating bootable flash in fat32. How should I set bios options to boot in uefi.

Fastboot -> Disabled
CMS -> Disabled
Secure boot ?
Boot mode - Other OS/ Windows UEFI ??

 

[Buljic]

it might not be worth it... unless Microsoft increase range of AMD CPU that run Win 11, I don't think your CPU is on this list - https://docs.microsoft.com/en-us/wi...supported/windows-11-supported-amd-processors

So breaking windows to install it as UEFI might be a waste of time.

I wanna learn. I mean I could just buy R5 2600X, but If I can not boot UEFI, then what's the point

 

[Colif]

Secure boot - I would leave off, can turn it on after

 

[Colif]

Do you have latest BIOS, one came out last month that supports win 11 - https://rog.asus.com/au/motherboards/rog-strix/rog-strix-b350-f-gaming-model/helpdesk_bios

maybe answer here helps? https://forums.tomshardware.com/threads/cannot-get-windows-10-to-install-on-a-gpt-partition.3170290/

 

[Buljic]

So, somebody told me that I can't boot UEFI installation with MBR schemed disk (Samsung Evo 850).

So this is the problem after all, my disk right now is MBR, guy from thread up says it should be installed on GPT disk

 

[Buljic]

Do you have latest BIOS, one came out last month that supports win 11 - https://rog.asus.com/au/motherboards/rog-strix/rog-strix-b350-f-gaming-model/helpdesk_bios

maybe answer here helps? https://forums.tomshardware.com/threads/cannot-get-windows-10-to-install-on-a-gpt-partition.3170290/

No, I don't have the latest. I'm using "stock" one

 

[Colif]

try updating BIOS, it could help.

 

[Colif]

So this is the problem after all, my disk right now is MBR, guy from thread up says it should be installed on GPT disk

the format of your ssd right now, being MBR, has no effect at all on the ability of PC to boot off a USB. the reason I showed link was to point out what you should click in Boot Priority to boot USB.

where did you get ISO from? did you make it using the Media Creation tool?

You should have used Media creation tool to make USB as that Installer supports both UEFI and CSM boot so it should have worked.

 

[SkyNetRising]

Yes, but Rufus always makes a FAT32 partition with the bootloader on it... Let me host the picture
Take a look, it should boot from partition 1

You're doing something wrong.
UEFI installation media should be partitioned in GPT with single FAT32 partition.