Drive.bat and shortcut files

Hello,

I'm currently using Win7 Enterprise and my unit was just reformatted. I don't have an internet connection right now so i'm using my mobile. I borrowed my friend's external drive for some drivers and utilities needed. Problem is.. I always end up seeing that drive folder (hidden) and a drive.bat file whenever I plug in the external drive. After that, i can't seem to open regedit and msconfig or install any other antivirus sofwares. Avira and spyhunter is the only security I have but doesn't seem to me it solved the problem 'cuz i still see that drive.bat and shortcut icons when I replug the external drives or any other pen drives I have. Done with attrib but it still denies it. Reformatting isn't an option anymore.