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How to Fix Microsoft 365 Not Working: License & Installation Checks
Question details
The user is unable to use Microsoft 365 and needs to verify their account license and perform a correct installation to restore functionality.
- Product
- Microsoft 365
- Device & OS
- not provided
- Scenario
- Verifying subscription licenses and reinstalling Microsoft 365 to resolve app access or functional issues.
- Observed behavior
- Microsoft 365 apps are not working or failing to activate, potentially due to missing licenses, incorrect account sign-ins, or corrupted installations.
Ensure you have your Microsoft account login credentials (work, school, or personal) ready and a stable internet connection before checking your subscription details.
Verify Your Microsoft 365 License (Work or School Accounts)
Confirm that your organization has assigned you the correct license to use desktop versions of Office applications.
Many organizational and educational accounts only provide access to the web versions of Microsoft Office. To use the desktop apps, your account must have a specific license explicitly assigned by your administrator.
Open your web browser and navigate to the official Microsoft account portal at https://portal.office.com/account/.
Log in using your organization's work or school email address and password.
Navigate to the 'Subscriptions' section on your account dashboard and look for the 'Latest desktop version of Office' under your assigned licenses.
If this license is missing, you must contact your company or school's IT administrator to request desktop access.
Reinstall Microsoft 365 Apps
If your license is valid but the apps still do not work, reinstalling the software can resolve corrupted files and background errors.
Try WPS Office: A Free, Lightweight Alternative to Microsoft 365
If your Microsoft 365 subscription has expired, or you only have a web-based license and need desktop applications, WPS Office is an excellent free alternative. It provides a comprehensive suite of tools for word processing, spreadsheets, and presentations without the burden of monthly subscription fees.
- 1. Download the Installer: Visit the official WPS Office website and click the free download button for your operating system.
- 2. Install WPS Office: Run the downloaded setup file and follow the simple on-screen instructions to install the software.
- 3. Open Your Documents: Launch WPS Office and instantly open, edit, or save your existing Microsoft Word, Excel, and PowerPoint files.
Frequently Asked Questions
What should I do if the 'Latest desktop version of Office' license is missing?
If you are using a work or school account, you must contact your organization's IT administrator and request them to assign the correct desktop application license to your profile. You cannot purchase or assign this license yourself.
Why is my personal Microsoft 365 subscription not activating?
Ensure you are signing in with the exact Microsoft account used to purchase the subscription. You can check your active subscriptions and purchase history by logging into account.microsoft.com/services.
Can I use Microsoft 365 without an internet connection?
Yes, but you need to connect your device to the internet at least once every 31 days to verify your subscription status. If you remain offline longer, the applications will enter reduced functionality mode, preventing you from editing or creating new documents.
