I'm having an issue with a laptop running Windows 7. The issue is within all folders that have picture files. They are regular JPEG's with Windows Photo Viewer as the default program. The issue is, the pictures are in 'medium thumbnail' view, but are only showing a generic jpeg icon, not a preview of the picture. I have first checked my Folder & Search Options under Organize and confirmed that 'Always Show Icons, Never Thumbnails' is UNCHECKED. I tried checking it, applying it, and then unchecking it but I still have no image preview. I then navigated to the Performance Options of Windows 7 and under the Visual Effects tab I confirmed that 'Show Thumbnails Instead of Icons' is checked. Finally I switched around the views from Small, Medium and Large and noticed that upon refreshing the previews show for a split second, but are immediately replaced by the generic jpeg icon. This also seems to happen when I open up my pictures folder for the first time.... They show for a second and then are replaced by the damn icon.
If anyone could help it would be greatly appreciated. I've been googlin' all morning.