I have a custom WinPE build which I have applied to an internal HDD partition.

I am trying to dual boot it along side my Windows 10 Pro installation.

I added and entry for it in the BCD. So now there are 2 entries:

1) C:\Windows\system32\winload.exe

2) F:\Windows\system32\winload.exe

Windows Boot Manager refuses to boot the WinPE installation displaying error "Windows cannot verify the digital signature for this file" in relation to winload.exe

I tried rebooting with the option to disable driver verification but then it bypassed the boot menu and loaded straight into Windows 10 Pro not giving me the option to load the WinPE entry.

Perhaps I should use GRUB?

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