Nv4_disp.dll is a file used by Nvidia graphics card drivers to help them do a lot of graphics and important parameters that your system needs to use every day. The error will usually involve nv4_disp.dll as the cause of the error - making it a high priority to repair the file parameters and causing the error to display.
The error is specifically when nv4_disp.dll file causes the system to enter an infinite processing loop. To ensure that this problem is not a major problem, you must ensure that you can fix both driver problems on your computer and prevent any recurrence.
The first step to correct this error is to actually use a patch developed by members of NVidia forum. This patch is a small software tool that will edit the digital files / settings that specifically cause the problem and causes the system to run much smoother again. You can download the patch on NVidia forums. You can also try to update the NVidia driver on your PC, automatically or manually - as NVidia may have solved the problem with a later version.
A registry cleaner is a powerful software type that scans your system and fix the errors that are. Inside the "registry" the registry is one of the most important parts of your system - storing a large number of Windows that requires vital parameters used each time it is run the. Only problem is that the registry is continually damaged and corrupted, which prevents the computer from being able to read the files it needs to function. This often causes a multitude of errors, and is a big reason why the error will form nv4_disp.dll. To ensure that there is no error trace on your PC, it is recommended that you use a registry cleaner program to scan your system and fix any problems that you have.