Hi I did a clean install of my mac today. When I was surfing on the web yesterday and should go to youtube, but missed the y and did go to outube instead. I did hit the cancel button and did type in the missing y. But my browser went to some other url and pop-ups and things, command q didn't work had to do a force-shutdown. I did backup my files on a portable drive before my new install, but can the portable drive be infected in some way now, I use it on other computers to (mac, windows)? How do I do to check if it is, plug it in to a windows machine with anti-virus?