Extract it --> Double-click on "AutorunExterminator" --> Plug your SD card now. This will remove the autorun.inf files from drives and plug your SD card drive to remove the autorun.inf file from it also.
[Note : Make sure Dot Net Framework is installed in your PC.
Click on "Start" -->Run --> type cmd and press Ctrl+Shift+Enter to launch it as an administrator. "Command Prompt" will be opened.
Here I assume your pendrive drive letter as G:
Enter this command.
attrib -h -r -s /s /d g:\*.*
You can copy the above command --> Right-click in the Command Prompt and paste it.