Tutorial: Remove Office License and Install a new Office Volume License using Serializer

First, log off every account that logs on to Microsoft Word.

Second, download this and install it. You won't get any new apps but after running it will clear your Office license. License Removal Tool

Last, download this and install it. You won't get new apps but this will activate your Office. Serializer

You will get Office 2021 now.

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If you encounter any problem, just try to reinstall Microsoft Office:

First, Open Finder and go to Applications on the left side, Remove All Microsoft Office Applications.

Next, click the link and install a new copy of Microsoft Office Office Installer, don't open it after it's installed.

Then, try to repeat those process but this time use the file you've already downloaded.

Hint: License Removal Tool is Microsoft_Office_License_Removal_2.7.pkg and Serializer is Microsoft_Office_LTSC_2021_VL_Serializer.pkg