MMC.exe – Entry Point Not Found Error

What Does This Error Mean?

Windows relies on Dynamic Link Libraries (DLLs) to share code among multiple programs. When an application calls a function that doesn’t exist in the specified DLL, Windows throws this error. In simple terms, the program is looking for something in a DLL file that isn’t there.

Common Causes of the Error

1. Missing or Corrupted DLL Files
   If the required DLL file is damaged or deleted, the program cannot access the necessary functions.
2. Version Mismatch
   This is the most frequent cause. Applications often depend on specific versions of DLLs. If you have an older or newer version installed, the entry point may not exist.
3. Incomplete Software Installation
   Interruptions during installation can leave DLL files missing or improperly registered.
4. Conflicting Software
   Installing multiple programs that use different versions of the same DLL can lead to conflicts.
5. Windows Updates or System Changes
   After major updates, some legacy applications may fail because the system DLLs have changed.
6. Malware Infection
   Malicious software can replace or corrupt DLL files, causing entry point errors.

How to Fix the Error

1. Run the “Big Two” System Repairs (SFC & DISM)

Before reinstalling software, check if the Windows “foundation” is broken. These two commands find and replace corrupted system DLLs automatically.

• SFC: Right-click Start, select Terminal (Admin), type sfc /scannow, and press Enter.
• DISM: If SFC doesn’t fix it, type DISM /Online /Cleanup-Image /RestoreHealth in the same window. This repairs the actual Windows image that SFC uses for its “spare parts.”

2. Repair Visual C++ Redistributables

Most DLL errors like msvcp140.dll or vcruntime.dll are caused by a broken C++ library. Instead of a full reinstall, try a repair:

1. Go to Settings > Apps > Installed Apps.
2. Search for Microsoft Visual C++.
3. Click the three dots (or right-click) on the 2015-2022 versions and select Modify, then Repair.

3. Reinstall the Affected Application

If the error only pops up when opening one specific program, that app’s local files are likely the culprit.

• Uninstall the program completely.
• Pro Tip: Download a fresh installer from the official source rather than using a file you already have on your drive, as the old installer itself could be corrupted.

4. Update Windows and Drivers

A “Version Mismatch” often happens when your software is newer than your operating system.

• Run Windows Update to ensure your system DLLs match the latest security and compatibility standards.
• Check your GPU manufacturer’s software (like NVIDIA GeForce Experience or AMD Adrenalin) for driver updates, as display drivers often use complex DLL libraries.

5. Scan for Malware

Some viruses target DLL files to hide their activity.

• Perform a Full Scan using Windows Defender.
• For a second opinion, run a scan with Malwarebytes to ensure a “browser hijacker” isn’t the one triggering the error.

6. Use Windows System Restore

If this error started happening immediately after you installed a new driver or specialty software, you can “time travel” back to before the conflict occurred.

• Search for Create a restore point, click the System Restore button, and choose a date when your PC was working perfectly.

7. Advanced: Use Dependency Walker

If you are an IT professional or developer, you can use Dependency Walker to see exactly which “function” is missing. It will list the specific DLL that is causing the chain reaction, allowing you to replace just that specific file from a known-good backup.

Preventing Future Errors

• Keep Windows and all applications updated.
• Avoid installing unofficial or pirated software.
• Regularly scan for malware.
• Create restore points before major updates or software installations.