Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Office files do not need to be converted just because Office Home 2021 is replaced with Office 2024. Word, Excel, and PowerPoint files can continue to be opened in the newer apps.
For a clean transition on Mac:
- Install Office 2024 for Mac.
- If Office 2021 licensing is still being picked up, remove the old Office 2019/2021-style license from the Mac by using the License Removal Tool.
- Open any Office app and sign in with the Microsoft account associated with the new Office 2024 purchase.
- In the app menu, select Help > Check for Updates to make sure the apps are fully updated.
If Office 2024 keeps behaving like the older install or asks for the wrong license, uninstall the existing Office apps first, run the license removal tool, and then reinstall Office 2024.
Important differences after the move:
- Office 2024 is a one-time purchase installed on one Mac only.
- One-time purchase Office suites do not include Microsoft 365 cloud-backed features such as OneDrive, Exchange Online, or SharePoint Online services.
- Office 2024 for Mac is supported on the three most recent versions of macOS.
If the Mac is older, verify macOS compatibility before reinstalling.
- End of support for Office 2019 for Mac | Microsoft Support
- Office suites for individuals and families | Microsoft Support
- Office suites for individuals and families | Microsoft Support
- [Office for home)](https://support.microsoft.com/office/lifecycle/officeinstall/troubleshoot-installing-office)
- I purchased Office Home 2024 and installer installs Office 2021 - Microsoft Q&A