How To Remove Autorun.inf Virus In USB 2.0 Flashdisk

I was bothered by this weird pop-up generated by avira antivirus regarding autorun.inf. After googling, the solution was to use cmd(previously DOS) command. del /a:rhs [driveletter]:autorun.inf Example: del /a:rhs F:autorun.inf (where F is my USB drive)
Reference: http://inforids.com/remove-autoruninf-virus-completly-from-system-flash-drives/