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How to Reinstall Preinstalled Microsoft Office Without a Premium Subscription
Question details
The user needs to reinstall a preinstalled version of Microsoft Office (Professional LTSC) without paying for a premium subscription.
- Product
- Microsoft Office
- Device & OS
- not provided
- Scenario
- The user uninstalled their preinstalled Microsoft Office from a new computer and is now being prompted to purchase a premium subscription when attempting to reinstall it.
- Observed behavior
- Reinstalling the software triggers a prompt for a premium subscription, and retrieving the product key via Command Prompt to enter on the Microsoft 365 website results in an error stating the key is rejected.
Before attempting to reinstall, check if you still have the original installation media or documentation containing the correct product key provided by the computer manufacturer.
Contact the Computer Manufacturer or IT Supplier
The most reliable way to recover a preinstalled LTSC (Long Term Servicing Channel) license is through the entity that originally provided it.
Since the original installation was a Professional LTSC activation, it is typically managed by a volume license or a specific OEM key. These licenses cannot be activated via standard retail channels or the consumer Microsoft 365 website.
Determine whether the computer was purchased from a retail manufacturer (such as Dell, HP, or Lenovo) or provided by your organization's IT department.
Contact their customer support or your IT administrator. Explain that you uninstalled the preinstalled Professional LTSC suite and request the official installation files specific to your license.
Use the deployment tool or specific installer provided by the manufacturer. Enter your original product key during this setup process instead of using the generic Microsoft website.
Check Your Connected Microsoft Account
Verify if the original license was digitally linked to the Microsoft account used when setting up the new computer.
Avoid Licensing Headaches with WPS Office
If you cannot recover your preinstalled Microsoft Office license and want to avoid paying for a premium subscription, WPS Office provides a free, lightweight, and highly compatible alternative for all your document needs.
- 1. Download the installer: Visit the official WPS Office website and click the free download button for your operating system.
- 2. Install the software: Run the setup file and follow the simple on-screen instructions to install WPS Office on your computer.
- 3. Open your existing files: Launch WPS Office and directly open your existing Word, Excel, and PowerPoint documents without worrying about subscription prompts.
Frequently Asked Questions
Why is Microsoft Office asking for a premium subscription after I reinstalled it?
You likely downloaded the default Microsoft 365 installer, which operates on a subscription model. Preinstalled versions, especially LTSC or Professional editions, require their own specific installation files and volume license keys to activate without a subscription.
Can I use the product key found via Command Prompt on the Microsoft website?
Not usually. Product keys for LTSC or OEM (preinstalled) versions often cannot be verified on the standard Microsoft 365 retail website. They must be entered into the specific installer or deployment tool provided by the manufacturer.
Will resetting my PC to factory settings restore the preinstalled Microsoft Office?
No, resetting the computer typically removes all user-installed and pre-loaded third-party applications. It does not automatically restore a previously uninstalled Office suite without the correct installation media or a linked Microsoft account.
