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WorkSpace needs to disable the USB function of the terminal desktop and set an authorization policy to disable USB redirection, but the terminal can still use the U disk to copy files after logging in to the desktop. As shown below:
In addition to USB, the terminal transferring files to the desktop can also support local resource mapping to transfer files. When the USB redirection function is turned off, the U disk can still be mapped to the desktop by local resource mapping. Therefore, if you want to disable the USB function of the terminal desktop, you need to disable the disk in the local resource mapping, so that the U disk will not be mapped to the virtual machine desktop.
Disable the disk in the local resource mappings