Update & Upgrade Problems

How to Upgrade a Second PC from Office 2021 to Office 2024

Maira Mehtab Sep 24, 2026 869 views

Question details

The user needs to resolve an issue where a newly purchased Microsoft Office Professional 2024 fails to activate or install on a second computer that currently runs Office 2021.

Product: Microsoft Office Professional 2021 / 2024
Device & OS: Windows 11
Scenario: Upgrading Microsoft Office software on multiple computers with a new license purchase.
Observed behavior: Office Professional 2024 does not install or activate correctly on the second PC, prompting a need to verify license terms and product legitimacy.

Before you start

Before proceeding, ensure you have the login credentials for the Microsoft account associated with your Office 2024 purchase and your 25-character product key.

Solution 1Recommended

Verify Microsoft License Limitations

Determine if your Office 2024 license is restricted to a single device, which is common for perpetual licenses.

Most perpetual-license versions of Microsoft Office, such as Office Professional 2021 and 2024, are licensed for installation on only one computer. If you previously had a bundled three-PC license, it may have been a special offering or an enterprise volume license.

Attempting to use a standard single-PC perpetual license on a second computer will result in an activation failure.

Sign in to Microsoft Account

Open your web browser and navigate to the Microsoft account page. Sign in using the email address associated with your Office Professional 2024 purchase.

Navigate to Subscriptions

Click on 'Services & subscriptions' from the top menu to view your active Microsoft products.

Check Device Limits

Locate Office Professional 2024 in the list and expand its details. Review the license terms to confirm if it is limited to 1 PC or Mac.

Perpetual License Limitation: Unlike a Microsoft 365 subscription, a single Office Professional 2024 purchase cannot be shared across multiple computers simultaneously.

Solution 2

Validate Third-Party Marketplace Purchases

Ensure your Office 2024 product key is legitimate, especially if it was purchased from a third-party seller.

Free Microsoft Office alternative

Switch to WPS Office for Hassle-Free Multi-Device Productivity

If your Microsoft Office 2024 perpetual license limits you to a single PC, consider switching to WPS Office. It is a lightweight, free alternative that offers seamless compatibility with Microsoft Word, Excel, and PowerPoint, making it easy to work across all your devices without expensive multiple-license purchases.

1. Download WPS Office: Visit the official WPS website and download the free installation package.
2. Install on Your Devices: Run the lightweight installer on your PC, laptop, or mobile devices.
3. Sign In to Sync: Create or sign in to your WPS account to seamlessly sync your documents across all your devices.

Highly compatible with Microsoft Office formats (.docx, .xlsx, .pptx)One account works seamlessly across Windows, Mac, iOS, Android, and LinuxFree core features without strict 1-PC perpetual license limitationsFamiliar user interface makes migration quick and easy

microsoft office alternative - wps office

Frequently Asked Questions

Can I install Office Professional 2024 on multiple computers?

Generally, no. Perpetual licenses like Office Professional 2024 are typically restricted to a single computer. If you need Office on multiple PCs, you either need to purchase additional standalone licenses or subscribe to Microsoft 365.

Why won't my newly purchased Office 2024 product key activate?

Activation can fail if the product key was already used, is invalid, or is part of an unauthorized bundle sold by third-party retailers. Always verify your purchase through your Microsoft account's 'Services & subscriptions' page.

How do I transfer my Office 2024 license to a new PC?

To transfer a perpetual license, you must first uninstall Office from the original computer. Then, sign in to your Microsoft account on the new computer, navigate to your subscriptions, and download the installer from there to activate it on the new device.

Installation & Activation