What should I do if HP printer software installation fails?

Remove the CD from your computer's CD drive and disconnect the printer, then restart your computer. Next, temporarily disable any software firewall and close any anti-virus software. Insert the printer software CD into your computer's CD drive and follow the onscreen instructions to install the software, but do not connect the USB cable until you are told to do so. After installation finishes, restart your computer and any security software you disabled or closed.