I would like to view thumbnail images in Windows explorer. Microsoft had the update, but it was necessary to first validate my copy of Win 7. When I tried to validate, the response was "This version of Genuine Advantage Validation Tool is no longer supported". I could not find a newer version of the Genuine Advantage Validation Tool. Many of my picture files from XP are identified by numbers, so I have to open them one by one to find the right one. So, how do I enable thumbnails in explorer?