Removed Virus from avast

hello today accidently i had opened a pendrive when virus notification showed.then i checked virus via avast.then i show many viruses and i re booted the system and showed below virus and deleted using avast.pic is given below

http://i58.tinypic.com/14xfdap.jpg

1.Now im safe or I should format whole the pc and re install to get rid of that virus or any help to do?
2 Do avast able to completely remove Thoses virus ?

thank you

see instructions here https://forum.avast.com/index.php?topic=53253.0
run Malwarebytes and Farbar Recovery Scan Tool as instructed and attach logs here