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

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How to Fix usbui.dll Missing Error (Solved)

How to Fix usbui.dll Missing Error (Solved)

What is usbui.dll?

usbui.dll short for USB User Interface Dynamic Link Library is a critical system file in Windows operating systems. This file helps manage various USB devices and provides the necessary interface between your hardware and software components. It’s essential for proper functioning of USB devices like keyboards mice storage devices and more.

Why is usbui.dll missing?

The usbui.dll file might be missing due to several reasons such as malware infections that corrupt system files accidental deletion during routine maintenance or software installation/uninstallation processes and system updates that fail to install the file correctly.

Step-by-Step Fixes:

Method 1: Reinstall Visual C++ Redistributable

The usbui.dll file is often associated with Microsoft’s Visual C++ Redistributable packages. To resolve the missing error you can try reinstalling these packages:

  • Visit the official Microsoft Download Center at this link.
  • Follow the instructions to download and install the appropriate Visual C++ Redistributable package for your version of Windows.

Method 2: Run SFC /scannow command

The System File Checker (SFC) is a built-in utility in Windows that scans for and repairs missing or corrupted system files. To run the SFC command follow these steps:

  1. Open Command Prompt as an administrator by typing “cmd” into the Start menu search bar right-click on “Command Prompt” and select “Run as administrator.”
  2. In the command prompt window type “sfc /scannow” and press Enter.
  3. Wait for the scan to complete. Once it finishes restart your computer and check if the usbui.dll error is resolved.

Method 3: Update System Drivers

Outdated system drivers can cause issues with various functions in Windows. To update your system drivers follow these steps:

  • Press the Windows key + X and select “Device Manager” from the menu.
  • In the Device Manager window find the category for Universal Serial Bus controllers. Expand it by clicking on the arrow next to the category name.
  • Right-click on the USB Root Hub device and select “Update driver.”
  • Choose “Search automatically for updated driver software” and follow the prompts to install any available updates.

Repeat this process for all Universal Serial Bus controllers in the list.

Conclusion

The usbui.dll error can be frustrating but with the methods outlined above you should be able to resolve the issue and get your USB devices functioning properly again. If the problem persists after trying these solutions consider seeking professional help from a certified Windows technician.

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