Hi there, today i was on my computer, watching youtube vids and it was time to eat so i turned it for for a bit to go eat with my family. After i turned it on an error came up saying i need to use system repair to fix it. So i did, but it didn't work so i decided to install windows again, but when i choosed the first option it said 'there has to be an existing OS' so tried the next option, which worked, but when it was time to choose the HD i want to install windows on, it had full space, i only had 20GB free before and now i mysteriously got full space. I decided to install windows and when it was finished i searched all over but all my files were gone Over 5000 pictures i took with my camera, all my music, videos, save files for over 20 games, its all gone Any ideas what just happened?