Microsoft has paused the rollout of KB5002907 while investigating reports of unexpected results on some devices running Office 2016 or Office 2019. Microsoft says Office may appear unlicensed after the update; in rare cases, it may be removed.
What KB5002907 was intended to do
KB5002907 was an optional update delivered through Windows Update for eligible Microsoft 365 Apps installations on Windows PCs. It targeted installations more than 90 days out of date that used Current Channel or Monthly Enterprise Channel.
Microsoft designed the update to start the Microsoft 365 Apps update process and move an eligible installation to a current build for its assigned channel. It does not change that channel.
What Office users reported
Microsoft’s bulletin describes reports involving some devices running Office 2016 or Office 2019 after KB5002907 was installed. The reported outcomes include Office appearing unlicensed and, rarely, Office being removed.
A Belgian MSP operator said five unrelated customers contacted his firm within about 10 minutes on September 24, with dozens of PCs affected across their organizations. He also said that re-entering the original Office product keys restored activation on affected systems.
Microsoft’s recovery guidance
If Office appears unlicensed, Microsoft recommends reactivating the purchased product. If Office was removed, Microsoft recommends downloading and reinstalling the purchased Office product.
