Usb virus

Hi im Adi here i have problem for a long time i got virus through my Usb which infact my Computer badly i try to use several softweare to remove such virus but not successful…. so i want such softwear which is more powerfull so that i protect my Computer from such viruses in feauter and also save my Usb from thoes kind of viruses…. Thanks waiting for quick responce……