How to Fix sppwmi.dll Missing Error (Solved)
What is sppwmi.dll?
sppwmi.dll or Serial Port for PWM Integration Dynamic Link Library is a crucial system file in Windows operating systems. It acts as an interface between the serial port and Power Management Controller (PWM) to manage power consumption of various devices.
Why is sppwmi.dll missing?
The sppwmi.dll error can occur due to several reasons including malware infection that may corrupt or delete system files accidental deletion during software installation/uninstallation or incompatibility issues after a Windows update.
Step-by-Step Fixes:
Method 1: Reinstall Visual C++ Redistributable
The missing sppwmi.dll file might be related to Microsoft Visual C++ Redistributable which could have been uninstalled or corrupted. To reinstall it:
- Download the latest version of Microsoft Visual C++ Redistributable from Microsoft’s official website.
- Follow the onscreen instructions to install it.
Method 2: Run SFC /scannow command
The System File Checker (SFC) tool can help restore missing or corrupted system files. To run the SFC:
- Press Windows key + X and select “Command Prompt (Admin)” or “Windows PowerShell (Admin).”
- Type `sfc /scannow` and press Enter.
- Wait for the process to complete. Restart your computer if prompted.
Method 3: Update System Drivers
Outdated or corrupt drivers can also cause the sppwmi.dll error. To update system drivers:
- Press Windows key + X and select “Device Manager.”
- Expand the categories to find your device right-click on it and choose “Update driver.”
- Select “Search automatically for updated driver software” and follow the onscreen instructions.
Conclusion
By following these methods you should be able to resolve the sppwmi.dll missing error in your Windows system. If the issue persists consider seeking professional help or consulting Microsoft Support for further assistance.