When you right-click on an image file (.gif, .jpg, etc...) and press Properties, the Summary tab contains useful information about the image properties.

If your Summary tab is missing, chances are that some application install removed the necessary registry entry.

To resolve the problem:

1. Add any additional image file extensions to the following list. Then Copy / Paste the list to an image.reg file:

REGEDIT4

\[HKEY_CLASSES_ROOT\.bmp\]
"PerceivedType"="image"

\[HKEY_CLASSES_ROOT\.dib\]
"PerceivedType"="image"

\[HKEY_CLASSES_ROOT\.emf\]
"PerceivedType"="image"

\[HKEY_CLASSES_ROOT\.gif\]
"PerceivedType"="image"

\[HKEY_CLASSES_ROOT\.ico\]
"PerceivedType"="image"

\[HKEY_CLASSES_ROOT\.jfif\]
"PerceivedType"="image"

\[HKEY_CLASSES_ROOT\.jpe\]
"PerceivedType"="image"

\[HKEY_CLASSES_ROOT\.jpeg\]
"PerceivedType"="image"

\[HKEY_CLASSES_ROOT\.jpg\]
"PerceivedType"="image"

\[HKEY_CLASSES_ROOT\.png\]
"PerceivedType"="image"

\[HKEY_CLASSES_ROOT\.rle\]
"PerceivedType"="image"

\[HKEY_CLASSES_ROOT\.tif\]
"PerceivedType"="image"

\[HKEY_CLASSES_ROOT\.tiff\]
"PerceivedType"="image"

\[HKEY_CLASSES_ROOT\.wmf\]
"PerceivedType"="image"
 
2. Merge the image.reg file with your registry.