How to boot from System Recovery Disk via USB media
1. Connect USB media. Run below commands.
diskpart
list disk
select disk X (X is a disk number for USB media.)
clean
convert mbr
create partition primary
list partition
select partition 1
format fs=fat32 quick
2. Run System Recovery Disk Creation Wizard.
3. Select "Typical" or "Advanced".
NOTE: To select "Advanced", you need to install ADK in advance.
4. Mark the checkbox "Create a System Recovery Disk on a USB device".
5. Proceed the wizard.
6. Boot from the System Recovery Disk via USB media.