Windows 10 tablet RCA Cambio w101 UEFI and 32bit only boots from internal flash drive and I messed up the BCD


New Member
The Windows 10 tablet RCA Cambio w101 has a built-in internal flash drive of only 32GB as disk 0. This does not suffice because my Windows installation already uses 29GB. Right now I can boot from the efi partition of disk 0 only into the Windows partition C: on disk 0.

My goal is to preserve the efi partition on disk 0 but to have Windows on an external drive as disk 1 and then hide the Windows partition C: on disk 0. As a first step in this direction, I attempted to create a dual boot in the boot manager.

So far I cloned the Windows partition to an SD card and added this partition's drive letter to the BCD using EasyBCD. When I choose the SD card in the boot menu, it does not boot. I tried the same with a USB stick, but the problem persists.

Experimenting with alternatively the stick and the SD I messed up the BCD. Right now it looks like this:

Windows Boot Manager
identifier {9dea862c-5cdd-4e70-acc1-f32b344d4795}
device partition=\Device\HarddiskVolume1
description Windows Boot Manager
locale en-US
inherit {7ea2e1ac-2e61-4728-aaa3-896d9d0a9f0e}
default {4a72f0c6-24c3-11ef-b65f-8930764e387d}
resumeobject {4a72f0c5-24c3-11ef-b65f-8930764e387d}
displayorder {e5cd49d2-24ad-11ef-b900-806e6f6e6963}
bootsequence {e5cd49d2-24ad-11ef-b900-806e6f6e6963}
toolsdisplayorder {b2721d73-1db4-4c62-bf78-c548a880142d}
timeout 10

Firmware Application (101fffff)
identifier {8ffc8ef6-211d-11ef-8b58-806e6f6e6963}
description UEFI: Built-in EFI Shell
custom:250000c2 1

Windows Boot Loader
identifier {4a72f0c6-24c3-11ef-b65f-8930764e387d}
device partition=C:
path \windows\system32\winload.efi
description Windows 10
locale en-us
inherit {6efb52bf-1766-41db-a6b3-0ee5eff72bd7}
isolatedcontext Yes
allowedinmemorysettings 0x15000075
osdevice partition=C:
systemroot \windows
resumeobject {4a72f0c5-24c3-11ef-b65f-8930764e387d}
nx OptIn
bootmenupolicy Standard

Windows Boot Loader
identifier {4a72f0cb-24c3-11ef-b65f-8930764e387d}
device partition=E:
path \Windows\system32\winload.efi
description Microsoft Windows sd
locale en-US
osdevice partition=E:
systemroot \Windows
bootmenupolicy Standard

I know how to add and delete entries in EasyBCD. But how can I delete and edit lines? I mean just to edit, not using the complicated commands of BCDedit?