I had the same error on a Dell laptop (Latitude 7420)
"cannot seal the encryption keys: cannot add EFI secure boot policy profile: cannot compute secure boot policy profile: the current boot was preceeded by a boot attempt to an EFI application that returned to the boot manager, without a reboot in between"
I had the same error on a Dell laptop (Latitude 7420)
"cannot seal the encryption keys: cannot add EFI secure boot policy profile: cannot compute secure boot policy profile: the current boot was preceeded by a boot attempt to an EFI application that returned to the boot manager, without a reboot in between"
I'm not sure what to make of this error.