With VirtualBox 4.3.14 or later, Connecting USB Drive to Host Causes Windows Guest Keyboard to Disconnect
(Doc ID 1946222.1)
Last updated on FEBRUARY 21, 2019
Applies to:Oracle VM VirtualBox - Version 4.3 to 4.3 [Release 4.0]
Information in this document applies to any platform.
In a VirtualBox 4.3.12 or later setup, the guest Windows Virtual Machine (VM) is running in Full screen or Seamless mode. After attaching an USB memory stick on the host, and the drive showing up in the guest session (via USB passthrough), the guest will disconnect the keyboard so typing no longer works. Only a reboot of the VM solves the problem. Window mode does not show the problem.
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