Office 2021 Plus Error

Question

I have Office 2021. Yesterday I opened Outlook and got an error. It was essentially "something went wrong. try to restart". I restarted my computer and opened Outlook again. Same error. I believe the error was 30015-11 (3221356598) but that might have been after trying to repair outlook.

In any case in searching Microsoft I was told to go to installed apps and select Outlook and select repair. If that doesn't work select reset.

It says repair won't delete data and reset will. Well repair did not work. So I selected reset. I didn't worry to much about the data since it was on the exchange server. Reset reinstalled Microsoft Office and then my key won't work. It tells me that the key is assigned to another user/installation.

What the heck? how do I get Office 2021 back?

Thanks,

Tom G

Answer 1

Hi，tom tgillian.com

Welcome to the Microsoft community! I have understood that you have Office 2021 and are using Outlook with error code: 30015-11

You can follow my method below：

 Since the installation path of Office is fixed and cannot be changed, Office cannot be installed when there are anomalies in the local files of Office, or when there are residual files that cause incorrect access to the data, as well as when there are problems with the system and the system registry.

• Next I will provide some detailed troubleshooting steps, which have examples of problem fixing. But if these problems can not be solved, only through a clean reinstallation of the system to solve the problem, because there have been cases of not retaining files to reset the system but the problem still exists.

1. Uninstall Office residual files manually.

Manually uninstall Office - Microsoft Support

This method can effectively delete locally stored Office data files, but the operation is more complicated.

IMPORTANT: Before you start, you need to know removing Office manually is a long, complex process and might require that you reinstall the operating system if certain steps are done incorrectly.

If you haven't already tried uninstalling Office using the uninstall support tool following the steps in the "Option 2" section under the "Click-to-Run or MSI" tab in Uninstall Office from a PC, we recommend trying that first.

Registry reset office

Press Windows + R , in the run box that opens type: regedit ,then press enter.

Locate the following keys and rename the Office folder (right-click on it and select Rename, e.g. rename Office to Officeold)

HKEY_CURRENT_USER\Software\Microsoft\Office

Also refer to the following steps to navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion in the Registry Editor and check if the Office data path location has been changed. If there is, please change it back to the correct path, the following is the correct path in the registry:

Disclaimer: Generally, modifying registry subkeys or work group is intended for advanced users, administrators, and IT Professionals. It can help fix some problems, however, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For further protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click How to back up and restore the registry in Windows - Microsoft Support to view the article. 

Once these operations are complete, you can try reinstalling Office in order to confirm that the problem is still there. If the problem persists, I can only recommend that you back up your data and cleanly reinstall your system.

Feel free to post back if you need further assistance. 

Thank you for your understanding and patience and I look forward to hearing from you.

Allen- MSFT | Microsoft Community Support Specialist