How to Fix amsiproxy.dll Missing Error (Solved)

What is amsiproxy.dll?

amsiproxy.dll is a Dynamic Link Library (DLL) file, an essential component in Windows operating systems. It is primarily associated with the Microsoft Anti-Spyware software, which was replaced by Microsoft Security Essentials and later by Windows Defender. The amsiproxy.dll file helps manage real-time protection services, ensuring your system remains secure from potential threats.

Why is amsiproxy.dll missing?

The amsiproxy.dll error typically occurs due to several reasons: accidental deletion during cleanup tasks, malware infection that corrupts or removes system files, or outdated Windows components.

Step-by-Step Fixes:

Method 1: Reinstall Visual C++ Redistributable

The amsiproxy.dll file might be a part of the Microsoft Visual C++ Redistributable package. To resolve this issue, reinstalling these packages can help restore the missing DLL file.

1. Visit the official Microsoft Download Center at: https://www.microsoft.com/en-us/download/details.aspx?id=52685
2. Download the appropriate version of Visual C++ Redistributable for your system (x86 or x64).
3. Follow the on-screen instructions to complete the installation process.

Method 2: Run SFC /scannow command

Running System File Checker (SFC) can help repair or replace corrupted system files, including amsiproxy.dll. Here’s how:

1. Press Windows key + X and select “Command Prompt (Admin)” or “PowerShell (Admin)” from the menu.
2. Type the following command and press Enter:



`sfc /scannow`



3. Wait for the scan to complete. If any issues are found, they will be automatically repaired.

Method 3: Update System Drivers

Updating drivers can also help resolve amsiproxy.dll-related errors. Use Device Manager to check for driver updates:

1. Press Windows key + X and select “Device Manager” from the menu.
2. Expand the affected device category (e.g., System Devices).
3. Right-click on the problematic device and select “Update driver” from the context menu.
4. Choose “Search automatically for updated driver software.”
5. Follow the on-screen instructions to install any available updates.

Conclusion

Missing or corrupted amsiproxy.dll files can cause numerous issues in your Windows operating system. By following the step-by-step guides provided above, you should be able to resolve the problem and restore the functionality of your system.