The rundll32 file is the bridge between your dll files and all the peripherals, programs, and devices attached to your computer. A dll file, or dynamic link library, is a file that multiple programs utilize synchronously. Intended to make computers run more efficiently and use less computing resources, dll files include code that certain programs may require. Programmers, instead of putting the same bit of code in every program they write call on dll files. Instead of having several programs with the same codes, dll files authorize you to have one copy of the code, and several programs using it. Dll files can also shoulder background tasks that are essential to the smooth secure operation of your computer.
The rundll32 error can be caused by several different problems. Everything from a hardware or software conflict to viruses, worms, or Trojans can cause rundll32 errors. These error messages can come at any time something is trying to access the dll files, like startup, loading a program or application, or shutdown. The majority of rundll32 errors are from a corrupt or missing dll file or driver somewhere that is causing another program to execute poorly.
Repairing rundll32 files can be fairly simple however. Downloading and running a registry cleaner can fix the problem. The Windows registry is one of the most important parts of your operating system. It stores information necessary to almost every program on your computer, including the operating system, any attached hardware, and also holds per user settings. Any changes to your computer, such as installing or deleting software, new hardware, or a simple change in user settings affects the registry.
Typically, rundll32 errors tell you which file is missing or corrupted, but for the typical computer user, manually editing the registry files can be hazardous to you computer. Changes to the registry can cause more problems than you started with unless you really know what to do without question or doubt. Using a registry cleaner can eliminate any corrupt or fault entries in the Windows registry, and should solve the rundll32 errors.
After completing the registry cleaner scan, consider running a thorough virus scan and an anti spyware. This should eliminate any viruses, Trojans, worms, or other malicious software that may be causing the rundll32 error.