After installing Microsoft Office LTSC and Project LTSC, I cannot update to the latest version to obtain security updates

Question

I found that when a computer is installed with the new versions of Microsoft Office LTSC 2021 and Microsoft Project 2021, their versions will be changed to 16.0.15225.20172 and cannot be updated.When I updated them again I was prompted "You're up to date"

I have set their update channel to "PerpetualVL2021", but it has no effect.

Not being able to update version means I can't close the office zerodays vulnerability,how should I update them？

Answer 1

Hi,

I suggest you go to File- Account and provide the detail version number of Office you're using:

As the article said, for Office LTSC 2021 the latest updates version number is: Version 2108 (Build 14332.20582)

https://learn.microsoft.com/en-us/officeupdates/update-history-office-2021

Which version of Office did you need?

Did you install other Office in the same PC before?

If yes, please follow these steps to check the status of Office license and remove the old Office license:

Search CMD, right-click the Command Prompt and run as administrator. Then copy and paste the command, click Enter at last:
cscript.exe "%ProgramFiles%\Microsoft Office\Office16\ospp.vbs" /dstatus

If you are running 32-bit Office on a 64-bit operating system:
cscript.exe "%ProgramFiles(x86)%\Microsoft Office\Office16\ospp.vbs" /dstatus

If you can find the Office product key which is not Office LTSC and Project LTSC 2021 in list, try to remove it by typing the following command with the Last 5 characters of installed product key (I replace it with XXXXX, but what you type in is what you see on your computer) in this interface:
cscript.exe "%ProgramFiles%\Microsoft Office\Office16\ospp.vbs" /unpkey:XXXXX

If the 32bit version of Office installed on a 64bit operation, run the following command:
cscript.exe "%ProgramFiles(x86)%\Microsoft Office\Office16\ospp.vbs" /unpkey:XXXXX

Just checking in to see if the information was helpful. Please let us know if you would like further assistance.

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