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Alex2880
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Solved!

Cannot start from disk if secure boot is enabled

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EliteBook 840 G5
Microsoft Windows 10 (64-bit)

Recently I've installed Windows 10 1809 on a 840 G5 but after enabling secure boot the laptop cannot start from the disk where Windows is installed.

Error: BootDevice not found

 

If I then disable secure boot and restart the machine it starts Windows from the disk without any problems. Disk check passes without any issues found.

From the boot menu I can see the disk but choosing it from there specifically doesn't change a thing, and I get the BootDevice not found again.

 

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iomare
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Did you install in Legacy mode or EFI mode?

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iomare
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Hi,

Did you install the OS in EFI mode or MBR mode.

Was secure boot turned omnwhen you performed the installation?

 

Regards,

David

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Alex2880
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Hi

 

Secure boot was disabled when I installed the OS.

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iomare
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Did you install in Legacy mode or EFI mode?

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Alex2880
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@iomare wrote:

Did you install in Legacy mode or EFI mode?


Thank you! Your comment put me on the right track.

The OS was installed in BIOS mode and not UEFI mode.

When I changed our deployment method it went as expected.

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iomare
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You're welcome.

Glad you solved it and have them up and running again.

 

All the best,

David

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