Office Crashes – Application SID does not match Conductor SID

Office crashes can be a frustrating experience, especially when you are in the middle of an important task. One of the common errors that users encounter is the “Application SID does not match Conductor SID” error. This error message indicates that there is a mismatch between the security identifiers (SIDs) of the application and the conductor.

This error can occur due to various reasons, such as a corrupted installation of Office, conflicts with other software, or issues with the Windows registry. However, the good news is that there are several solutions that you can try to fix this error and get your Office application up and running again.

Here are some of the solutions that you can try:

1. Repair Office installation: The first step is to repair the Office installation. To do this, go to the Control Panel, select Programs and Features, and then select Microsoft Office. Click on the Change button and select the Repair option. Follow the on-screen instructions to complete the repair process.

2. Disable add-ins: Sometimes, add-ins can cause conflicts with Office applications, leading to crashes. To disable add-ins, open the Office application in safe mode by holding down the Ctrl key while launching the application. Once the application is open, go to File > Options > Add-ins. Select COM Add-ins and click on Go. Uncheck all the add-ins and click OK.

3. Update Office: Make sure that you have the latest updates installed for Office. To check for updates, open any Office application and go to File > Account > Update Options. Click on Update Now to check for updates and install them.

4. Run SFC scan: The System File Checker (SFC) scan can help fix any corrupted system files that may be causing the error. To run an SFC scan, open the Command Prompt as an administrator and type “sfc /scannow” without the quotes. Press Enter and wait for the scan to complete.

5. Reinstall Office: If none of the above solutions work, you may need to reinstall Office. Uninstall Office completely from your system and then reinstall it from the official Microsoft website.

In conclusion, the “Application SID does not match Conductor SID” error can be fixed by repairing the Office installation, disabling add-ins, updating Office, running an SFC scan, or reinstalling Office. Try these solutions one by one until you find the one that works for you.


I hope these solutions help you fix the “Application SID does not match Conductor SID” error and get your Office application running smoothly again. Remember to try each solution one by one until you find the one that works for you. If you have any further questions or concerns, feel free to reach out for assistance.

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