My Acer Aspire A515-54 BIOS doesn't boot with UBS flash drive

Hello.

I have an Acer Aspire A515-54 and it got a BSOD with the stop code Machine Check Exception that doesn't let me start windows anymore.

I bought a Win 11 and created a bootable USB flash drive with the ISO file from the Win 11 disc image. I created the UBS bootable with Rufus using GPT partition.

I then accessed my bios with F2, DISABLED my Secure Boot and ENABLED my F12 boot menu. I then inserted my USB and pressed F12 and the only option of boot available is the windows boot manager.

I read a bunch of articles, watched videos, created a different USB flash drive. Tried a bootable USB with Win 10 from a friend. And nothing works. Still cannot see the UBS bootable option listed in Bios and computer is still crashed. It's been like this for 4 days no.

Can anybody help me please? These are my Bios Screens

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[Edited the thread to add model name to the title]

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StevenGen

https://community.acer.com/en/discussion/700173/my-acer-bios-doesnt-boot-with-ubs-flash-drive

First try to try to fix the Machine Check Exception see here https://www.minitool.com/backup-tips/machine-check-exception.html

If you can't and you have no valuable data in your previous Win-11 OS, as your Aspire A515-54 comes oem from Acer with Win-11, and why did you buy a new Win-11 OS with the installation USB, as you don't need it. All you need to do is go to the Microsoft Win-11 version 23H2 page and at the bottom of this webpage you have the .ISO download Win-11 version 23H2, so download that onto your 2nd computer and afterwards construct a USB 8GB boot drive with Rufus 4.4.

Afterwards, insert the new Win-11 23H2 boot USB into the Aspire A515-54 laptops 3.0 USB port, reboot the laptop to get into the bios, see this guide "How to enter the UEFI/BIOS from Windows 11 (7 ways)" as after you have gotten into the bios, you will see in bios Boot Section > Boot priority order > you will see the Win-11 USB and all you have to do is to put the Win-11 USB to the 1st priority order boot, and then reboot as after the reboot, the Win-11 23H2 installation will begin. Good luck

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billsey

With the F12 boot menu enabled, all you need to do is hit F12 at boot time to get a menu that lists all UEFI boot points. If you have created your W11 install flash drive correctly, it will be listed and you can select it. If it's not listed there is either a problem with your flash drive or with the image on it. No need to remove Secure boot since the Windows install images are all signed.

Axxo

Solution 1: Please check if your computer supports USB Boot Options:
Solution 2: Enable CSM or Legacy boot mode, disable Secure Boot Control.
Solution 3: Insert the USB drive into another computer, to see if it's bootable.
Solution 4: Format the USB flash drive with NTFS file system if the computer is Legacy BIOS mode.