I had a folder with about 800GB of photos in it on an external harddrive. The computer was left on during the day with the drive plugged in and when i came to access the photos that evening they were not there when I opened the folder. There was only 118MB of photos in there. When i rightclick on the folder and select properties it shows that the folder is about 800GB in size but as mentioned when the folder is opened there are only 118MB of photos in there. I am running windows 7 and the external drive is 2TB so there is plenty of room on there.
Any suggestions as to what has happened/ how to recover the files?