Select the Close (X) button in the upper-right corner of the app window to close it. Then, reopen the app. Make sure Windows is up to date.

Understanding the Context

Select Start > Settings > Windows Update > Check for updates. If there is an available update, select Install now. Make sure that your app works with Windows 11. From Microsoft 365 or Office for PC In any Microsoft 365 or Office app, go to File > Account (or Office Account in Outlook) > Sign out.

Key Insights

Close all Microsoft 365 or Office apps. To force an app to close, do the following: On your iPad or iPhone, press the Home button twice. This shows all the apps that are currently open. Swipe left or right to find the app you want. Swipe the preview screen up to close it.

Final Thoughts

This example shows PowerPoint being closed.