The Windows autorun function for all connected drives like USB sticks, CD/ DVD drives and network drives bears a high security risk. This useful function is used by malware and unwanted programs as a loop hole for hidden infections on the computer.
This is why, AntiVir Guard blocks the automatic run of storage drives by default, except CDs and DVDs. The following AntiVir message is shown:
If you like to deactivate this function, please open the Avira AntiVir Control Center, click Configuration, activate Expert mode, go to Guard → Scan → Further actions, or Guard → Scan → Action on detection if you use Avira AntiVir Personal and uncheck the option Block autostart function. Click OK to save the changes.