natsinas

may i make a question?i just accepted a file from a friend in messenger...this file was a picture, something like "image61youtube.jpg".i accidently opened it without considering what this file is about...now i realize that my pc got a virus...i scanned my pc and cleared a couple of trojans...i also installed a new version of messenger...now what am i supposed to do?should i format my pc?or is another way that i can desinfect my disks...thank u...