No SPP service after connecting to HC-05 module


I have a problem that after connection with the HC-05 (pairing goes OK) i get two com ports. But I am unable to connect to the com port. It previously worked perfectly on this computer. When I open the BT properties of the HC-05 there is no service listed (there should be a Serial port (SPP) dev.

On another PC this module works fine, but on another PC I have the same problem as described above.

Has somebody a solution for this problem?