Certclas inf missing win 7 Tags: Drivers Hewlett Packard Deskjet Windows 7 Last response: April 1, 2010 1:51 PM in Windows 7 Share Anonymous a b \ Driver a b $ Windows 7 April 1, 2010 7:54:48 AM Hello, trying to install HP deskjet I get the message missing certclas.inf lbcsb.ddl and some more files missing , what should I do? Thanks Yosi More about : certclas inf missing win das_stig a b \ Driver a b $ Windows 7 April 1, 2010 1:51:10 PM If your using a driver CD, get the latest version of HP website, could be a bad CD. Can't find your answer ? Ask ! Publish Read discussions in other Windows 7 categories Configuration Customization Drivers Security Laptops !