Disconnect your printer.
Un-install your printer.
Restart your computer.
Download the driver, update and diagnostics from here
Install the drivers. You'll be prompted when to connect your printer.
Everything should work.
I used to have a Dell computer with Win 98, and an HP scanner 3200c. When I bought a new Dell (with Win XP), I tried to install the HP software (PrecisionScan LT software), but it didn?t work (I got some message saying my computer could become unstable, but I don?t remember the details because it was a year ago), so I uninstalled it. Since then every time I boot up my computer, I get the following error message: ?This program updates your HP Scanning Software. You may see a message about ?Digital Signature Not Found?. You must click on ?yes? for the update to install correctly.?
I?ve even tried to reinstall the scanning software, but I get the message ?This software does not support Windows 95 or Windows NT. It requires Windows 98.? My question: how can I get rid of the ?This program updates your HP Scanning software? message? It's driving me crazy! Thanks in advance.