This operation applies to installing Office patch updates and does not support the upgrade of major versions of Office (for example, Office Home and Student Edition 2019 cannot be upgraded to Office Home and Student Edition 2021).
For more operation details, please visit the Microsoft official website：
https://www.microsoft.com/en-in/about/contact-us.aspx#:~:text=Microsoft%20India%20office%20locations,%2C%20Kolkata%2C%20Mumbai%20and%20Pune.
1. Open any Office app (such as Word), and create a new document.
2. Click File.
3. Click Account. Under Product Information on the right, select Update Options > Office Update.
NOTE: If you don't see the Office Update option right away, you may need to click Enable Updates first.
4. After Office finishes checking and installing updates, close the Is the latest version window.
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