Image icon shown as standard icon

[bigbingo]

Hi all,

After formatting my pc whenever I open a folder with images, the icons are standard icon and not a preview of the image. Why? I have to click the icon in order to see which image is it.
I have 7 ultimate

Thanks for help

 

[ThrashZone]

See if this helps,
http://www.sevenforums.com/tutorials/11738-thumbnail-previews-enable-disable.html