Symptoms:
Users who would like to prevent worms which execute without any user interaction using an “AutoRun.inf” file, can disable the Windows AutoRun feature completely with the help of the Windows group policy editor (Gpedit.msc). This would be helpful to stop USB virus spreading.

If you want to disable using GPO for all clients under Active Directory, follow instruction to access that http://iwan-it-admin-tips.blogspot.com/2009/01/domain-group-policies-edit.html

Solution:
Group Policy
>Local Computer Policy
>>Computer Configuration
>>>Administrative Templates
>>>>System
>>>>>Turn off Autoplay - Enabled

Do the same for User Configuration

For AD:
Group Policy Object Editor
>Default Domain Controllers Policy [sever name] Policy
>>Computer Configuration
>>>Administrative Templates
>>>>System
>>>>>Turn off Autoplay - Enabled

Do the same for User Configuration