Windows LIVE photo gallery does not start (open) when you double click on an image
Until Microsoft fixes this problem in the future builds of Windows Live Photo Gallery, here is how to resolve the problem.
Login as Administrator or equivalent. Click Start, Run and type:
regsvr32 "%ProgramFiles%\Windows Live\Photo Gallery\PhotoViewerShim.dll”
Note that there is a space after the word regsvr32 in the above command-line.
You should now see the following message:
DllRegisterServer in C:\Program Files\Windows Live\Photo Gallery\PhotoViewerShim.dll succeeded.
Now you should be able to open image file types using Windows Live Photo Gallery.