How to Fix ustprov.dll Missing Error (Solved)
What is ustprov.dll?
ustprov.dll is a Dynamic Link Library (DLL) file that plays a crucial role in the operation of Microsoft Windows. DLL files contain code and data that can be used by multiple applications within a system. In the case of ustprov.dll it is associated with the Universal Serial Bus (USB) services provided by Windows.
Why is ustprov.dll missing?
The ustprov.dll file might become corrupted or missing due to various reasons such as:
- Malware Infection: Malicious software can corrupt or delete important system files like ustprov.dll.
- Accidental Deletion: Users may accidentally delete the file while cleaning up their system.
Step-by-Step Fixes:
Method 1: Reinstall Visual C++ Redistributable
The ustprov.dll file is related to Microsoft Visual C++ so reinstalling the redistributable package can help resolve the issue.
- Visit Microsoft’s Visual C++ Download page.
- Download the appropriate version for your operating system and architecture (x86 or x64).
- Follow the installation instructions provided by Microsoft.
Method 2: Run SFC /scannow command
The System File Checker (SFC) is a built-in Windows tool that can help repair missing or corrupted files like ustprov.dll.
- Press the Windows key + X and select Command Prompt (Admin) or PowerShell (Admin).
- Type the following command and press Enter:
sfc /scannow
Method 3: Update System Drivers
Outdated drivers can cause various issues including missing DLL files. Updating them may help resolve the issue.
- Press the Windows key + X and select Device Manager.
- Locate the device for which you want to update the driver and right-click it.
- Select Update Driver > Search automatically for updated driver software.
Conclusion
By following one or more of these methods you should be able to resolve the ustprov.dll missing error in Windows. If the issue persists it may be necessary to seek further assistance from a professional technician.