Keeping track of when and where your 1603 error occurs is a critical piece of information in troubleshooting the problem.
Driver Doc's proprietary One-Click Update™ technology not only ensures that you have correct driver versions for your hardware, but it also creates a backup of your current drivers before making any changes.
Maintaining a driver backup provides you with the security of knowing that you can rollback any driver to a previous version if necessary.
Because of this risk, we highly recommend using a trusted registry cleaner such as Reimage [download] (Developed by Microsoft Gold Certified Partner) to scan and repair any Error 1603-related registry problems.
Using a registry cleaner [download] automates the process of finding invalid registry entries, missing file references (like the one causing your 1603 error), and broken links within the registry.
Drivers can work one day, and suddenly stop working the next day, for a variety of reasons.