How to Fix avrt.dll Missing Error – Step by Step

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How to Fix avrt.dll Missing Error (Solved)

How to Fix avrt.dll Missing Error (Solved)

What is avrt.dll?

avrt.dll is a Dynamic Link Library (DLL) file that is essential for the proper functioning of various Windows applications, particularly those related to Microsoft Security Essentials and Microsoft Defender. This file helps in executing specific functions within these programs.

Why is avrt.dll missing?

There could be several reasons for the avrt.dll error, including malware infection that might have deleted or corrupted the file, accidental deletion by a user during system cleaning, or incompatibility issues after upgrading Windows.

Step-by-Step Fixes:

Method 1: Reinstall Visual C++ Redistributable

The avrt.dll file is associated with Microsoft Visual C++ Redistributable packages. To resolve the issue, you can reinstall the latest version of Visual C++ Redistributable:

  1. Visit the official Microsoft Download Center at this link.
  2. Download and run the Visual C++ Redistributable for your system (x64 or x86).
  3. Follow the on-screen instructions to complete the installation process.

Method 2: Run SFC /scannow command

Running System File Checker (SFC) can help you repair corrupted system files, including avrt.dll:

  1. Press Windows key + X and select Command Prompt (Admin) or PowerShell (Admin).
  2. Type the command sfc /scannow and press Enter.
  3. Wait for the process to complete. Restart your computer if prompted.

Method 3: Update System Drivers

Outdated drivers can cause various issues, including missing dll files. Updating system drivers might help resolve the issue:

  1. Press Windows key + X and select Device Manager.
  2. Locate the device whose driver needs to be updated, right-click on it, and select Update Driver.
  3. Choose Search automatically for drivers and follow the on-screen instructions to complete the update process.

Conclusion

By following these steps, you can effectively resolve the avrt.dll missing error in your Windows system. It is essential to maintain a healthy and updated system to ensure optimal performance and security.

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