System32.dll is usually a Windows operating system file. This file is a dynamic link library file which is located within the folders that are installed when the operating system is installed. Typically system32.dll error messages are related to one of two causes. The causes of these are both negative things that happen to your system, but can be fixed pretty quickly and even automatically by programs as long as you know what you are looking for.
The first cause of errors related to the system32.dll file is if the file has been moved, changed or has become corrupt. Many times this will happen if there have been major changes to the registry of your system such as incorrectly adding different versions of software instead of upgrading the programs, incorrectly removing programs by just deleting the files within the program folder of the operating system, and also by manually making tweaks or changes to the registry of the system.
If this is the cause the system32.dll error messages being displayed within your system then it is not a big issue as many times system32.dll files can be changed unknowingly and can be fixed easily. The first thing that can be done is to download a new version of the system32.dll file and put in where the old version was previously located. The only issue with doing this is that it may require changes to your registry, which is similar to the brain of your computer. Within the registry are instructions and files that are accessed by many programs in your computer.
If an incorrect version is installed, or put in the wrong place, then there is a possibility that more system32.dll errors can occur. If you do not feel comfortable manually fixing this issue then the best thing to do is to download a registry cleaner and get the program to automatically identify any issues in your registry to fix the issues that are causing system32.dll errors.
The second issue that is commonly encountered with the system32.dll file is when it is actually a malicious program hiding under the name of system32.dll within your system. Often times it will be a Trojan infection within the system that is malicious in nature and doing things within your system that you might not want. The best way to resolve this issue is to get a security program to scan your entire system. Many times these scans can take a long time to do a full scan, however removing the malicious program is very important so it is worth the time.