Change Thumbnail Preview Size in Windows Vista The thumbnail preview that props up in the Windows Vista taskbar is a well-appreciated innovation. However, many users complain that the size of the preview is a touch too small. If you wish to tweak the size of this thumbnail preview, you can use the Vista Thumbnail Sizer utility. This handy application allows you to change the … [Read more...] about How To Increase / Change / Decrease / Enlarge Taskbar Size In Windows Vista or 7