Managing iPad3 Photos in Windows Live Photo Gallery

I have an iPad3 and have imported photos from it to my Windows desktop. I did this with a normal synch and I also accessed the iPad directly through Windows Explorer and copied the DICM file. When I attempt to edit/crop photos in Windows Live Photo Gallery, however, I receive an error message saying, "This photo can't be saved because of a problem with the photo's file properties." Any ideas on how to work around this apparent conflict in formats?