vdefhub.zip file cannot be viewed on an Vista machine whereas it can be viewd in the same location in an XP machine vdefhub.zip is an hidden file in Windows Vista Ø Click the round blue Start in the left corner Ø Click Control Panel Ø Click Folder Options Ø Click the View tab Ø Click Show hidden files and folders Ø If you want to see system files as well, unclick Hide protected operating system files (Recommended) Ø Click OK Ø You should be able to view the file now