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

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How to Fix UIAutomationCore.dll Missing Error (Solved)

How to Fix UIAutomationCore.dll Missing Error (Solved)

What is UIAutomationCore.dll?

UIAutomationCore.dll short for User Interface Automation Core DLL is a crucial dynamic link library file in Windows operating systems. This DLL file plays an essential role in automating user interfaces of applications making them accessible for users with disabilities and enabling automated testing tools to function correctly.

Why is UIAutomationCore.dll missing?

The UIAutomationCore.dll file can go missing due to several reasons such as accidental deletion during system clean-ups malware or virus infections that intentionally remove files or incompatible software updates that may unintentionally delete the DLL file.

Step-by-Step Fixes:

Method 1: Reinstall Visual C++ Redistributable

The UIAutomationCore.dll file is linked to Microsoft’s Visual C++ Redistributable packages. To reinstall the necessary package follow these steps:

  1. Go to the official Microsoft Download Center: https://www.microsoft.com/en-us/download/details.aspx?id=52685
  2. Download and install the Visual C++ 2015 Redistributable Update 4.

Method 2: Run SFC /scannow command

The System File Checker (SFC) tool is designed to scan and repair system files including DLL files like UIAutomationCore.dll. To run the SFC command:

  1. Press Windows Key + X on your keyboard and select “Command Prompt (Admin)” or “PowerShell (Admin)”.
  2. Type `sfc /scannow` and press Enter.
  3. Wait for the scan to complete then restart your computer if prompted.

Method 3: Update System Drivers

Outdated device drivers can cause various issues including missing DLL files. To update system drivers:

  1. Press Windows Key + X and select “Device Manager”.
  2. Expand the category with the problematic device (e.g. Display adapters).
  3. Right-click on the device then choose “Update driver” > “Search automatically for updated driver software”.

Conclusion

By following the above methods you should be able to resolve the UIAutomationCore.dll missing error on your Windows system. If the issue persists consider performing a clean boot or performing a system restore to a point before the problem occurred.

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