DLL errors are some of the most common, frustrating, and complicated errors to troubleshoot and resolve. Fixing a DLL error is rarely as easy as replacing the DLL, something that I don't recommend doing even if it does fix the problem.
Below is a list of the 5 most common DLL errors that computer users are seeing right now with links to easy to follow, step-by-step solutions that anyone can handle!
The error "Missing or corrupt hal.dll" and other hal.dll errors like it are often caused by boot.ini or hal.dll file issues. This error message usually appears as "Windows could not start because the following file is missing or corrupt - Windows root\system32\hal.dll. Please re-install a copy of the above file."
In almost all cases, ntdll.dll errors are caused by software programs, not the operating system. Common error messages include "STOP: C0000221 unknown hard error \SystemRoot\System32\ntdll.dll", "NTDLL.DLL Error!" and others.
"Explorer caused an invalid page fault in module Kernel32.DLL" is the most common kernel32.dll error message you'll see. Kernel32.dll errors are usually caused by software programs that are accessing areas of your system memory incorrectly.
"D3dx9_25.dll Not Found" and "D3dx9_25.dll is Missing" errors are usually caused by DirectX problems. You'll most often see d3dx9_25.dll errors when starting certain video games or advanced graphics programs.