How to disable AUTORUN in Windows 7

http://answers.microsoft.com/en-us/windows/forum/windows_7-security/how-do-i-disable-autorun-windows-7/7ba51974-c009-44ad-9067-f3968744175b

1. Run "gpedit.msc"
2. Expand "Administrative Template" under "User Configuration"
3. In "Windows Components" - "AutoPlay Policies", double-click "Turn off Autoplay".
4. Click "Enable" and select the option "CD-ROM and removable media drives" (or "All drives", if you prefer).
5. Click "OK".