Hi,
Virtualbox allows to boot from USB. But this feature isn’t exposed to the GUI.
Lets start. First of all determine the physical disk. Open Powershell and query the disks by WMI
PS D:\> Get-WmiObject -Query "Select * from Win32_DiskDrive" Partitions : 3 DeviceID : \\.\PHYSICALDRIVE0 Model : Samsung SSD 850 PRO 512G Size : 512105932800 Caption : Samsung SSD 850 PRO 512G Partitions : 1 DeviceID : \\.\PHYSICALDRIVE2 Model : Generic USB CF Reader USB Device Size : 4030387200 Caption : Generic USB CF Reader USB Device