dll error on startup

Question

I get this message when I open my system:

C:\Windows\System32\pnpui.dll is either not designed to run on Windows or it contains an error. Try installing the program again using the original installation media or contact your system administrator or the software vendor for support.

Do you know how to solve this problem? 

Original Title: please reply for this

Answer 1

Hello,

Welcome to Microsoft Community. I appreciate your efforts towards resolving the issue. I will certainly help you with the issue that you are facing.

Method 1:

Step 1: Try Safe Mode

Safe mode is the configuration of Windows, when it is running on only basic set of drivers and all the startups are disabled. To know more about safe mode, follow the article below:

http://windows.microsoft.com/en-us/windows/start-computer-safe-mode#start-computer-safe-mode=windows-7

If the issue is resolved in safe mode, follow step 2 after restarting the computer in regular mode.

Step 2: Clean Boot

A clean boot is performed to start Windows by using a minimal set of drivers and startup programs. This helps eliminate software conflicts that occur when you install a program or an update or when you run a program in Windows. To know more, follow the article below:

http://support.microsoft.com/kb/929135

Note: After troubleshooting, refer to this section ‘How to reset the computer to start normally after clean boot troubleshooting’.

Method 2: Run the System File Checker tool (SFC.exe)

System File Checker is a utility in Windows that allows users to scan for corruptions in Windows system files and restore corrupted files. It will scan your system files and to repair missing or corrupted system files in Windows. To run the SFC scan, refer to the Microsoft article below.

http://support.microsoft.com/kb/929833

Hope this information was helpful. Let us know the results once you have tried these methods. We'll be glad to assist you further