**How to Fix PsmServiceExtHost.dll Missing Error (Solved)**
**1. What is PsmServiceExtHost.dll?**
PsmServiceExtHost.dll is a Dynamic Link Library (DLL) file a type of file that contains code and data used by various applications on your Windows system. This specific DLL file is associated with Microsoft’s Photos App and is crucial for its proper functioning.
**2. Why is PsmServiceExtHost.dll missing?**
There are several reasons why you might encounter the PsmServiceExtHost.dll missing error. Some common causes include:
– **Malware Infection:** Malicious software can corrupt or delete system files including DLLs like PsmServiceExtHost.dll.
– **Accidental Deletion:** Sometimes users might accidentally delete this file while cleaning up their system.
**3. Step-by-Step Fixes:**
**Method 1: Reinstall Visual C++ Redistributable**
The missing PsmServiceExtHost.dll error can occur if the Visual C++ Redistributable package is not installed correctly or is outdated. Follow these steps to reinstall it:
1. Visit the Microsoft Visual C++ Downloads page.
2. Find and download the appropriate version for your Windows operating system (32-bit or 64-bit).
3. Run the downloaded installer and follow the on-screen instructions to complete the installation.
**Method 2: Run SFC /scannow command**
Running the System File Checker (SFC) can help repair corrupted system files including DLLs. Here’s how:
1. Search for ‘Command Prompt’ in the Start menu right-click on it 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 done restart your computer and check if the issue persists.
**Method 3: Update System Drivers**
Outdated or corrupted drivers can cause various system errors including the PsmServiceExtHost.dll missing error. You can update your drivers manually or use a third-party tool like Driver Easy.
**4. Conclusion**
The PsmServiceExtHost.dll missing error can be frustrating but is usually easy to resolve. By following the steps outlined in this guide you should be able to get your Photos App working correctly again.