Activation Problems

Fix Microsoft 365 Activation Saying No License Available on Third Computer

Maira Mehtab Sep 22, 2026 870 views

Question details

The user is unable to activate Microsoft 365 on a third computer because the system reports that no license is available, despite the subscription working on two other devices.

Product: Microsoft 365
Device & OS: not provided
Scenario: Activating Microsoft 365 applications on an additional computer.
Observed behavior: The activation fails with a 'no license available' error on the third computer, although the account has active installations on two other devices. Using a different email address successfully resolved the issue.

Before you start

Ensure you have the exact email address and password associated with your active Microsoft 365 subscription before proceeding with the troubleshooting steps.

Solution 1Recommended

Verify and Use the Correct Microsoft Account

License errors often occur when logging in with a secondary or incorrect email address. Switching to the account tied directly to your Microsoft 365 subscription will usually resolve the issue.

Many users have multiple Microsoft accounts for different purposes (e.g., Xbox, Skype, or a secondary email). If you sign into Office with an account that does not hold the active subscription, the software will report that no licenses are available.

Open an Office Application

Launch Word or Excel on the third computer where you are experiencing the activation error.

Access the Account Settings

Click on 'File' in the top-left corner and select 'Account' from the left-hand navigation pane.

Sign Out of the Current Account

Under the 'User Information' section, check the currently logged-in email. If it is incorrect, click 'Sign out'.

Sign In with the Subscription Account

Click 'Sign in' and enter the exact email address and password that you used to purchase the Microsoft 365 subscription.

Activation Successful: Once signed in with the correct email, your Office applications will automatically detect the license and activate.

Solution 2

Remove Obsolete Devices from Your Microsoft Account

If you have reached your device limit or have phantom devices registered, removing old or unused computers will free up your license status.

Free Microsoft Office alternative

Avoid Complex Activation Limits with WPS Office

If you are tired of troubleshooting Microsoft 365 activation errors, device limits, or managing multiple accounts, consider switching to WPS Office. It provides a lightweight, highly compatible, and free alternative for all your document editing needs without strict device licensing headaches.

1. Download WPS Office: Visit the official WPS website and download the free installation package for your operating system.
2. Install the Software: Run the installer and follow the simple on-screen instructions to set up WPS Office on your computer.
3. Open Your Existing Files: Launch WPS Office and directly open your existing Word, Excel, and PowerPoint files without worrying about format conversion.

Free to use without complex subscription activation requirements or strict device limits.Fully compatible with Microsoft Office formats, including .docx, .xlsx, and .pptx.Lightweight installation that runs smoothly on older computers, laptops, and secondary devices.Familiar user interface that allows for seamless migration from Microsoft 365.

microsoft office alternative - wps office

Frequently Asked Questions

How many devices can I install Microsoft 365 on simultaneously?

A Microsoft 365 Personal or Family subscription allows you to install Office on up to 5 devices simultaneously per user. If you encounter a license error before reaching this limit, you are likely signed in with an incorrect account.

Why does my Microsoft account say no license is available when I have an active subscription?

This usually happens if you are logged in with a different email address that isn't tied to your active subscription, or if obsolete devices are still registered in the Microsoft system, taking up your available license slots.

How do I check which email account is associated with my Microsoft 365 subscription?

You can check your active subscriptions by logging into account.microsoft.com and navigating to the 'Services & subscriptions' tab. This page will display all active licenses attached to the email address you used to log in.

Can I use Office applications without activating a license on my third computer?

Without a valid activation, Microsoft 365 applications will run in a reduced functionality mode. You will be able to view and print documents, but you will not be able to edit them or create new files.

Installation & Activation