System32 Error Message RRS feed

  • Question

  • This message occurs every time i lanuch Windows 7

    C:\windows\system32\credui.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 they software vendor for support.

    What does this mean and how do I correct this issue?


    Friday, March 3, 2017 3:26 AM

All replies

  • Do some reading here:


    S.Sengupta, Windows Insider MVP

    Sunday, March 5, 2017 12:51 AM
  • Hi,

    Do you remember making any changes to the computer recently? Do you have any security software installed on the computer?

    This error message might occur if there are some corrupt system files on the computer.

    I would suggest you to run a SFC scan which would scan for corrupt system files on the computer and replace them.

    Steps to perform SFC scan:

    1. Click the Start button

    2. From the Start Menu, Click All programs followed by Accessories

    3. In the Accessories menu, Right Click on the Command Prompt option

    4. From the drop down menu that appears, Click on the 'Run as administrator' option

    5. If you have the User Account Control (UAC) enabled you will be asked for authorization prior to the command prompt opening. You may simply need to press the Continue button if you are the administrator or insert the administrator password etc.

    6. In the Command Prompt window, type: sfc /scannow and then press Enter

    7. A message will appear stating that 'the system scan will begin'

    8. Be patient because the scan may take some time

    9. If any files require replacing SFC will replace them. You may be asked to insert your Vista DVD for this process to continue

    10. If everything is okay you should, after the scan, see the following message "Windows resource protection did not find any integrity violations"

    11. After the scan has completed, Close the command prompt window restart the computer and check.

    For more information please refer the below link.

    How to use the System File Checker tool to troubleshoot missing or corrupted system files on Windows Vista or on Windows 7


    If the above step fails I would suggest that you can check if you have similar issue in the safe mode.

    Steps to boot to Safe mode

    1. Restart your computer if it is powered on.

    2. Tap the F8 key after your computer initially powers on.

    3. Once you see the Advanced Boot Options menu you can stop tapping.

    4. Use the up/down arrow keys to highlight your selection.

    5. Select Safe Mode and press Enter.

    6. You should see drivers loading, and then Please wait.

    7. You should then be at the Welcome Screen.

    8. Logon to your computer using an account with Administrator privileges.

    If you do not face similar issue in the safe mode I would suggest that you can try the clean boot procedure and check if it works.

    How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7


    Best Regards,


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    • Proposed as answer by Tony_Tao Monday, March 13, 2017 6:58 AM
    Monday, March 6, 2017 7:08 AM