To access the UEFI menu, create a bootable USB media:
- Format a USB device in FAT32.
- Create a directory on the USB device:
/efi/boot/
- Copy the file shell.efi to the directory created above. This file is attached to this article in shell.zip.
- Rename the file shell.efi to BOOTX64.efi
- Restart the system and enter the UEFI menu.
- Select the option to Boot from USB.
Try to reproduce the problem that's seen in the DE Preboot Authentication screen.
When the problem is
not present when you boot to the EFI shell, it indicates that the issue is with DE and not the vendor. In this situation, contact Technical Support.
NOTE: Steps are only applicable to systems in EFI mode and
not Legacy BIOS mode.
- If you are a registered user, type your User ID and Password, and then click Log In.
- If you are not a registered user, click Register and complete the fields to have your password and instructions emailed to you.