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Office for Mac Issues

Fix Office Home & Student 2021 Compatibility on Older Mac

Maira MehtabMaira Mehtab Sep 27, 2026 869 views

Question details

The user is unable to use Microsoft Office Home & Student 2021 on an older MacBook due to unsupported macOS versions and needs options for resolving the issue or transferring the license.

Product
Microsoft Office Home & Student 2021
Device & OS
macOS
Scenario
Attempting to run or transfer a Microsoft Office 2021 license on an older Mac.
Observed behavior
Office Home & Student 2021 fails to install or function because the currently installed macOS version is no longer supported by the software.
Before you start

Verify your exact Mac model and current macOS version by clicking the Apple menu in the top-left corner and selecting 'About This Mac'.

Solution 1Recommended

Update to a Compatible macOS Version

The most direct method to fix compatibility issues is to upgrade your Mac's operating system to a version supported by Office 2021.

Microsoft Office 2021 typically requires one of the three most recent versions of macOS to run properly. Updating your system will restore compatibility.

1
Open System Preferences

Click the Apple menu in the top-left corner of your screen and select 'System Settings' (or 'System Preferences' on older models).

2
Check for Software Updates

Navigate to 'General', then click on 'Software Update'. Your Mac will check for the latest available macOS version.

3
Install the Update

If a compatible update (such as macOS Monterey or newer) is available, click 'Update Now' or 'Upgrade Now' and follow the on-screen instructions to install it.

Hardware Limitations: If your Mac is too old, it may not support the newer macOS versions required to run Office 2021.
Free Microsoft Office alternative

Use WPS Office on Your Older Mac

If your Mac is too old to upgrade to a macOS version supported by Office 2021, WPS Office is an excellent alternative. It is highly compatible with older macOS versions, providing a complete office suite without the heavy system requirements.

  1. 1. Download WPS Office: Visit the official WPS Office website on your Mac and click the download button for macOS.
  2. 2. Install the Software: Open the downloaded .dmg file and drag the WPS Office icon into your Applications folder.
  3. 3. Open Your Files: Launch WPS Office from your Applications folder and seamlessly open your existing Word, Excel, or PowerPoint files.
Runs smoothly on older Macs and previous macOS versions.Fully compatible with Microsoft Office formats including .docx, .xlsx, and .pptx.Lightweight installation that saves valuable storage space.Familiar user interface for a seamless transition.
microsoft office alternative - wps office

Frequently Asked Questions

Which macOS versions are compatible with Office Home & Student 2021?

Microsoft Office 2021 for Mac is supported on the three most recent major versions of macOS. As Apple releases new major versions, Microsoft drops support for the oldest one.

What should I do if my Mac hardware does not support newer macOS updates?

If your Mac is too old to install a compatible macOS version, you cannot run Office 2021. You can either use a lightweight alternative like WPS Office, use Office on the Web via a browser, or transfer your license to a newer computer.

Can I transfer my Office 2021 license to a different computer?

License transfers depend on the specific license terms and regional laws. In the European Economic Area (EEA), transfers may be permitted by law. You should contact Microsoft Support to confirm your rights and process the transfer.

How do I check my current macOS version?

Click the Apple icon in the top-left corner of your screen and select 'About This Mac'. A window will pop up displaying your current macOS version and your Mac model year.