Soyour sixteen GB transcend Pen repel went two GB after formatting.Your pen repel was septic with the Viruses. So you formatted it . 1styou should accept scanned the Pen repel for virusesutilizingthe Anti-virus software from the computer and deleted it. there arelots anti-virus software useable for scanning and taking out theviruses from the computer system as well as from the Pen repels. Youcan download 1 of them. I will hint you to download the AVGAnti-virus softwarefor this intention.