Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hi,
Thank you for posting your query in Microsoft Community.
Do you have multiple versions of Office installed in your computer?
Let’s follow the steps mentioned below then try to install:
Step 1:
Run the fix it or follow the manual steps to remove Office traces completely as explained in the article mentioned below:
http://support.microsoft.com/kb/2739501
Step 2:
If issue still persists, start the computer in a clean boot state and verify the result.
Refer to the following for instructions on how to start the computer in a clean boot state.
http://support.microsoft.com/kb/929135
Note: Ensure to restart the computer in normal mode once troubleshooting is completed.
Clean boot is performed to disable all startup programs and 3rd party services on the machine and check if they are conflicting with the Office program. If so, you may disable the unwanted software those conflict with the suite or get them updated.
Hope the above information helps. Reply with necessary information and the result to help you further.
Thank you.