Aaaaah. Tonight I decided to organise some files and created a new folder in G:\ called 'Old Stuff'. I selected all bar three files (a good couple of hundred files) and dragged them into the folder thiking they'd move immediately. Big mistake. It crashed. I rebooted and can't open any files on the pen drive. The files are there with date and size etc but they will not open. Even right clicking crashes the window.

Any advice?