@Harikrishnan
I:\autorun.inf > Suspicious > Renamed. (MD5: d41d8cd98f00b204e9800998ecf8427e
autorun.inf are just a trigger file, file that telling Windows to launch other executable file. In most cases, the executable file is some kind of installer.
Example:
This autorun.inf want to tell Windows to launch installer for Macromedia_Setup.exeOpen the detected autorun.inf (it is called now as autorun.inf.blocked) using notepad and see on witch file is targeting.
In any case, without some logs we can't tell you much.