Recommendation: Novice Windows users are recommended to use a driver update utility like DriverDoc [Download DriverDoc - Product by Solvusoft] to assist in updating HP Laptop device drivers. This Windows utility downloads, installs, and updates your ProBook 4545s drivers automatically, preventing you from installing the wrong driver for your OS.
HP (Hewlett Packard)'s ProBook 4545s are subject to corrupt and out-of-date device drivers. Drivers will work one day, and for a variety of reasons, suddenly quit working the next day. The good news is that the Laptop system driver can always be modified to solve the laptop dilemma.
Finding the exact driver for your ProBook 4545s-related hardware device can be extremely difficult, even directly on the HP (Hewlett Packard) or related manufacturer's website. Even if you have the expertise, finding, downloading, and updating ProBook 4545s drivers can still be a tedious and messy process. Installing the wrong driver, or simply an incompatible version of the right driver, can make your problems even worse.