Hi Sirvi,
You can do this by following these steps:
- Insert the USB media to the Hyper-V host.
- go to disk management on the host and right click the usb storage, and take it offline. (The VM and the host are not allowed to have simultaneous access)
- Go to the settings of your VM and click on SCSI controller
- Add the type "HardDrive"
- Go to the newly create harddrive in the Hyper-V settings menu and click on the option Physical harddrive. You should be able to select the USB drive.
Please accept my answer it it helped you in anyway.
Thanks!