USB stick

Hi,

 

I'm new to the Norton community so I hope I'm posting in the right place.

Can anybody explain this to me?

I have a USB data stick that I store all my backups on.  When I just tried to open it it came up sa Yalj :F and then all I got when I opened it was gobbledegook. I've done a scan on it and it seems ok.

What can I do to restore it?