I've enabled a TPM chip on a Dell Optiplex 580 and configured Bit-Locker (win 7 enterprise). Anytime a USB device is pluggen in or out, then it requires an external bitlocker key to continue to boot.
What is happening is the BIOS recognizes a change (from a new/removed device) and locks the TPM (where the key is stored). I need to be able to remove a USB and not worry about a mouse or kebord failure.
Called Dell. They said it was a "feature," but I have many others that dont do this. How can I turn off BIOS "plug and play"?