error 0xc000000f - a required device isn't connected or can't be accessed

Hi

Just successfully built PE without errors

Copied to USB using usb script and all copied okay - but when I try and boot (on a laptop I know worked fine before) I get

error 0xc000000f - a required device isn't connected or can't be accessed

Any ideas please?

Did you change anything in the UEFI settings (write to USB device)?

https://www.youtube.com/watch?v=NS6vCPBJ7bo

no all left as default apart from changing partition sizes as I didn't want 4 partitions, so altered size of 1 and 2 and set 3 and 4 to 0mb

altered size of 1 and 2 and set 3 and 4 to 0mb

Must be it, then...

I don't know what your partition scheme looks like, but don't you need a hidden system reserved, a boot, and a windows partition? I don't use efi/gpt layout myself, but I guess the problem's in that area. Maybe revert to the previous situation and test.

not sure about it creating hidden partitions for PE - I know a normal install of 8.1 does but not PE as far as I know

The bootice partitioning just seems to default to wanting to divide my external hard drive into 4 equal partitions which I don't want

Originally set partition 1 to 20gb and partition 2 to use rest of space - this gave me the above error

Now done it again using a bigger size for partition 1 and boots okay - so must be a size issue

not sure about it creating hidden partitions for PE

Sorry, I was completely confused there... The guy in the video was talking about a normal system of course, I got confused with a normal system and a PE. Please forgive me... (that'll teach me trying to do 5 things at once).