First, download Process Explorer from here: Ģ.
For Windows Vista/7 Users, the ability to see which file is running rundll32.exe is built in Windows Task Manager. If you’re running Windows XP on your system, then you will have to download a program called Process Explorer. The first thing you’re going to want to do is find out which application is running the rundll32.exe file.
But if the problem still persists after the reboot then continue with the following. If you’re lucky, then the problem your experience may only require a single reboot.
Perhaps your issue is temporal and the system will rectify itself on a system restart. You’d be surprised by the amount of errors that can be resolved by simply restarting your system. Below I have put together a comprehensive guide on the various steps you should consider undertaking while attempting to rectify this issue. Again, it can be rather difficult trying to determine the root cause of this problem this is because of all the potential culprits. However, in most cases, when a person is confronted with this particular rundll32.exe error, it’s usually due to an invalid or incorrect installation or uninstallation of a program/driver/application which could be the result of a virus on your system. The reason(s) you may be experiencing this issue is very expansive, which is why it’s not uncommon for people to spend a considerable amount of time trying to pinpoint the exact cause of the error. It can be anything from the files inability to execute a specific program, a corrupt rundll32.exe file, a viral or malware infection or a Windows integrity issue. There are a number of reasons why you may be confronted with this frustrating rundll32.exe error. It’s very rare that people will come face to face with the rundll32.exe error, but it does happen, hence your presence here. The rundll32.exe file is important in that it makes these files available in memory (RAM) so that the data can be processed by the CPU this in turn prevents the unforeseeable circumstance of your system being rendered inoperable. A DLL file is basically a file that is used by more than one program on your computer. Rundll32.exe is an integral component of your Windows operating system, as it is used to place DLL files into system memory.