**How to Fix XblAuthTokenBrokerExt.dll Missing Error (Solved)**
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**1. What is XblAuthTokenBrokerExt.dll?**
XblAuthTokenBrokerExt.dll is a *Dynamic Link Library (DLL)* file that plays a crucial role in the operation of certain Windows applications, particularly those related to Xbox Live services on Windows 10. Dynamic Link Libraries are files containing functions that can be used by multiple programs within a computer system.
**2. Why is XblAuthTokenBrokerExt.dll missing?**
The XblAuthTokenBrokerExt.dll file might go missing due to several reasons, including:
– *Malware infection*: Malicious software can corrupt or delete important system files like XblAuthTokenBrokerExt.dll.
– *Accidental deletion*: Users may inadvertently delete this file while cleaning up their system.
– *System updates*: Sometimes, system updates might move or rename the DLL file, causing applications to fail to locate it.
**3. Step-by-Step Fixes:**
Below are three methods to help you resolve the XblAuthTokenBrokerExt.dll missing error:
**Method 1: Reinstall Visual C++ Redistributable**
1. Visit the official Microsoft Download Center at
2. Find and download the latest version of Visual C++ Redistributable for your system (x64 or x86).
3. Run the downloaded setup file to reinstall the required files, including XblAuthTokenBrokerExt.dll.
4. Restart your computer and check if the issue persists.
**Method 2: Run SFC /scannow command**
1. Search for “Command Prompt” in the Start menu or the Cortana search bar, then right-click on it and select “Run as administrator”.
2. In the Command Prompt window, type `sfc /scannow` and press Enter to start a system file check and repair process.
3. Wait for the scan to complete, which might take several minutes. Once done, restart your computer and check if the error is resolved.
**Method 3: Update System Drivers**
1. Press the Windows key + X simultaneously, then select “Device Manager” from the menu.
2. In the Device Manager window, expand the categories to locate the problematic device driver (e.g., Display adapters or Network adapters).
3. Right-click on the device driver and select “Update Driver”.
4. Choose “Search automatically for updated driver software” and follow the on-screen instructions to update the driver. Repeat this process for all drivers that appear problematic.
**4. Conclusion**
By following these step-by-step methods, you should be able to resolve the XblAuthTokenBrokerExt.dll missing error on your Windows system. If none of these solutions work, it’s recommended to consult a professional for further assistance or consider performing a clean reinstallation of your operating system as a last resort.