[. . . ] In the Device Manager the robotic part will be not recognized and it will be shown as an "Unknown Medium Changer". 2. [. . . ] Select "Install from a list or specific location (Advanced)" and then select "Don't search. After that please click on "Have disk" and select the "bdtmc. inf" file that you have downloaded from the Acer Support Website ( http://support. acer-euro. com ) or just use the one on the Autoloader CD-ROM. An other Warning message will pop-up, click on "Continue Anyway" to proceed with the installation. Now the Acer Altos Medium Changer is perfectly installed Note: After the Medium Changer Installation is complete it is necessary to update the driver of the LTO2 Tape Drive. [. . . ] Now the Acer Altos Medium Changer is perfectly installed Note: After the Medium Changer Installation is complete it is necessary to update the driver of the LTO2 Tape Drive. [. . . ]