Full Guide to Fix RunDLL Error in Windows 7/8/8.1/10

About RunDLL

RunDLL, also known as Rundll32.exe, is a necessary process directly related to your Windows operating system. It is responsible for loading and executing DLL (Dynamic Link Library) modules which work closely with Windows Registry to improve response speed and memory efficiency.

  • DLL files get corrupted.
  • A shared DLL file is infected by a virus or Trojan.
  • A shared DLL file is deleted when an application is uninstalled.
  • DLL entries are invalid or incorrect in the Windows registry.

Fix 1: Replace the Corrupted RunDLL File

The RunDLL file is stored in the path of C:\Windows\System32. Once the file is corrupted and RunDLL error appears, replacing the corrupted RunDLL file should be the easiest method to fix the error.

Fix 2: Run SFC Scan

System File Checker (SFC) scan is a great solution to most errors related to system files. Thus, you can try running SFC scan to fix RunDLL error.

Fix 3: Clear All Your Browser’s Cache and Close All the Tabs

If you receive RunDLL error while browsing web pages, you might have opened the scam website. To fix the error in browsers, you need to close all the tabs and clear cache.

Fix 5: Perform System Restore

Finally, you can perform system restore to roll your computer to an earlier stage to fix RunDLL error. Just follow the steps below.