I bought a used Dell Latitude 9430 with a 12th-generation Core i7. It came with Ubuntu installed, but every attempt to install Windows ends with "No Bootable Device Found" after selecting the USB installer from the F12 boot menu.
The SSD is visible in the BIOS, and storage mode is set to AHCI. I've tried Microsoft's Media Creation Tool, Rufus, Dell OS Recovery, several USB drives, BIOS defaults and factory resets, Secure Boot both enabled and disabled, Secure Erase, different Secure Boot settings, and even another NVMe SSD. I also manually added the USB's bootx64.efi file in the BIOS boot configuration.
The laptop installs and boots Fedora successfully, so the hardware and USB boot process seem to work. I'm wondering whether this is related to Secure Boot certificates or a Windows-specific boot issue. The system is configured for UEFI-only boot, TPM 2.0 is enabled, and there is no CSM option. I also tried replacing the installer's bootx64.efi with SecureBootRecovery.efi from another computer, which only reported that the Microsoft UEFI 2023 certificate was already present. What else should I check?
1 Answer
Start from BIOS defaults and verify that the installer is a genuine Windows 11 UEFI image. CSM or Legacy mode should be disabled, Secure Boot should normally be enabled, and TPM 2.0 should be turned on. Since this machine is UEFI-only and Fedora boots successfully, the problem is more likely the Windows USB media or how it is being selected than the SSD itself.
I created installers with Microsoft’s tool, Dell OS Recovery, and Rufus. The BIOS is UEFI-only, TPM 2.0 is enabled, and I already tried both default and factory BIOS resets.