Autorun.inf may appear harmless but it is often used to hide dangerous codes and damage your pc when you connect usb devices. You can't easily delete it. However there is a method without using any software. Simply follow this trick...
Step 1:- Run command prompt as administrator.
Step 2:- Go to root directory usingcd or cd/ command.
Step 3:- Now type “attrib -h -r -s autorun.inf” and press enter.
It will search for autorun.inf file inyour computer.
Step 4:- Now you will have resultsif there is file or not if you find result of this file then type del autorun.inf & press Enter. This will delete autorun.inf from your computer.
Step 5:- finally..Restart your Computer