Hard drive

My laptop crashed so we took out the hard drive and hooked it up to a caddy. I'm connecting it to Windows Vista. I can view my files but once it comes to pics I can't see the individual pcs. It would say I don't have permission to view the file. I figured out how to change the permission on the specific pic that I want to view but I have only been able to do it individually. I changed the permission on the file that holds all the pics but then it won't change the permission setting on each pic. I have hundreds of pics that I can't see and I need to know what other way I can change the permission on them without having to go through each individual file!