What are LyncMUI.msi Error Messages?

General LyncMUI.msi Runtime Errors

LyncMUI.msi file errors often occur during the install phase of Microsoft Office Professional Plus 2013, but can also occur while the program is running. These types MSI errors are also known as “runtime errors” because they occur while Microsoft Office Professional Plus 2013 is running. Here are some of the most common LyncMUI.msi runtime errors:

• LyncMUI.msi is not a valid installation package.
• LyncMUI.msi could not be found.
• The feature you are trying to use is on a network resource that is unavailable. Click OK to try again, or enter an alternate path to a folder containing the installation package "LyncMUI.msi" in the box below.

Most MSI errors are due to missing or corrupt files. Your LyncMUI.msi file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Microsoft Office Professional Plus 2013), or deleted by a malware infection. Furthermore, LyncMUI.msi file corruption could be caused from a power outage when loading Microsoft Office Professional Plus 2013, system crash while loading or saving LyncMUI.msi, bad sectors on your storage media (usually your primary hard drive), or malware infection. Thus, it’s critical to make sure your anti-virus is kept up-to-date and scanning regularly.

How to Fix LyncMUI.msi Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your LyncMUI.msi issue. These troubleshooting steps are listed in the recommended order of execution.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

1. Hit the Windows Start button
2. When you see the search box, type "System Restore" and press "ENTER".
3. In the search results, find and click System Restore.
4. Please enter the administrator password (if applicable / prompted).
5. Follow the steps in the System Restore Wizard to choose a relevant restore point.
6. Restore your computer to that backup image.

If the Step 1 fails to resolve the LyncMUI.msi error, please proceed to the Step 2 below.

You can uninstall Microsoft Office Professional Plus 2013 software by following these instructions (Windows XP, Vista, 7, 8, and 10):

1. Hit the Windows Start button
2. In the search box, type "Uninstall" and press "ENTER".
3. In the search results, find and click "Add or Remove Programs"
4. Find the entry for Microsoft Office Professional Plus 2013 2013 and click "Uninstall"
5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Microsoft Office Professional Plus 2013 software.

If this Step 2 fails as well, please proceed to the Step 3 below.

Microsoft Office Professional Plus 2013 2013

Microsoft Corporation

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many LyncMUI.msi error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

1. Hit the Windows Start button
2. In the search box, type "Update" and press "ENTER".
3. In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
4. If updates are available for download, click "Install Updates".
5. After the update is completed, restart your PC.

If Windows Update failed to resolve the LyncMUI.msi error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

If Those Steps Fail: Download and Replace Your LyncMUI.msi File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate LyncMUI.msi file version. We maintain a comprehensive database of 100% malware-free LyncMUI.msi files for every applicable version of Microsoft Office Professional Plus 2013. Please follow the steps below to download and properly replace you file:

1. Locate your Windows operating system version in the list of below "Download LyncMUI.msi Files".
2. Click the appropriate "Download Now" button and download your Windows file version.
3. Copy this file to the appropriate Microsoft Office Professional Plus 2013 folder location:
   
   Windows 8: C:\MSOCache\All Users\{90150000-012B-0409-0000-0000000FF1CE}-C\
   Windows 10: C:\MSOCache\All Users\{90150000-012B-0409-1000-0000000FF1CE}-C\
   Windows 10: C:\MSOCache\All Users\{90150000-012B-0409-0000-0000000FF1CE}-C\
   
4. Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.

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