Since the standard tool requires an installation, here is how to bypass that to get a 100% portable version that fits in your pocket:
: Ensure you are editing the BCD on your target external drive using the "BCD Deployment" page. easybcd portable
Because EasyBCD modifies critical system files, you should follow these steps to avoid a "No Bootable Device" error: Since the standard tool requires an installation, here
EasyBCD is a powerful software utility developed by NeoSmart Technologies. It allows users to take full control of their Windows BCD (Boot Configuration Data). With this tool, you can: Windows, Linux, Mac, and BSD with ease. Repair the Windows bootloader after a crash. Create bootable USB drives from ISO images. Change the default OS and the boot menu timeout. Does an Official "EasyBCD Portable" Exist? With this tool, you can: Windows, Linux, Mac,
: Create copies of your boot settings and repair broken bootloaders.