For AV I use Windows Securtity Essentials and Malwarebytes Anti-Malware, both of which seem to be doing an excellent job in preventing vuruses.
I just finished a Repair Install, and nothing has changed in the right-click menu for image files.
I work on ncomputers. A LOT. I build them, repair, troubleshoot, etc. I do it almost every day, all day, and most evenings. I don't understand this one. I've searched the registry manually, tried ShellExView and ShellMenuView, everything looks ok. I've Googled, searched many of the tech forums, including Microsoft's Support site with no answers that worked. Very unusual, this one's got me beat...