Product Key Issues

How to Reinstall Microsoft Office When the Original Activation Email is Disabled

Natalie Taylor Oct 8, 2026 868 views

Question details

The organization needs to reinstall Microsoft Office, but the product key is tied to a former employee's disabled email account.

How to Reinstall Microsoft Office When the Original Activation Email is Disabled

Product: Microsoft Office
Device & OS: not provided
Scenario: Attempting to reinstall Office for a new user or device after the original employee has left the organization and their email account was deactivated.
Observed behavior: The administrator cannot access or reassign the redeemed product keys because the original activation Microsoft account is no longer valid or accessible.

Before you start

Before proceeding, gather all original purchase records, receipts, and order confirmation emails for the Microsoft Office licenses, as proof of purchase is required for license recovery.

Solution 1Recommended

Recover the License via Microsoft Support and Administration

Work with your IT administrator or Microsoft Support to trace and reassign the inaccessible license using your proof of purchase.

A Microsoft Office product key can generally be redeemed only once. Upon redemption, the license becomes permanently associated with the specific Microsoft account used at that time.

If the account belongs to a former employee and has been deactivated, the license cannot be transferred or accessed manually without administrative intervention.

Locate proof of purchase

Find your original receipts, order confirmations, and any documented physical or digital product keys associated with the purchase.

Contact your IT administrator

Reach out to your organization's Microsoft 365 or licensing administrator. Ask if they can temporarily reactivate the former employee's email address to receive password reset links for the Microsoft account.

Contact Microsoft Support

If internal email recovery is impossible, navigate to the official Microsoft Support page and initiate a support ticket regarding a lost account.

Request license reassignment

Provide your proof of purchase to the support agent, explain that the employee has left the organization, and request that the licenses be recovered, reassigned, or replaced to a valid organizational admin account.

Recover the License via Microsoft Support and Administration

Best Practice for Corporate Licensing: To prevent this issue in the future, always activate retail Office products using a centralized, generic corporate admin account rather than individual employee email addresses.

Free Microsoft Office alternative

Try WPS Office to Avoid Licensing Hassles

If you cannot recover your Microsoft Office license, consider switching your team to WPS Office. It provides a robust, free alternative for organizations, eliminating the need to manage complex product keys for individual employees while maintaining full format compatibility.

1. Download the installer: Visit the official WPS website and click 'Download WPS Office Free' to get the latest version.
2. Install the software: Run the lightweight installer file and follow the simple on-screen instructions to set it up on your device.
3. Open existing files: Launch WPS Office and open your existing Microsoft Office files directly with perfect format retention.

Fully compatible with Microsoft Word, Excel, and PowerPoint formats (.docx, .xlsx, .pptx).Free to download and use with no complex product key bindings per individual employee.Lightweight installation that runs smoothly on standard Windows, Mac, and Linux devices.Familiar user interface allows employees to transition seamlessly with zero learning curve.

microsoft office alternative - wps office

Frequently Asked Questions

Can I transfer a retail Microsoft Office license to another email account?

By default, retail Microsoft Office licenses are permanently linked to the Microsoft account used during the initial setup and cannot be transferred manually. You must contact Microsoft Support with proof of purchase to request a formal license transfer.

What happens if an employee leaves and takes their activated Office license?

If the license was bound to their personal or inaccessible corporate email, the organization loses access to it. It is highly recommended to manage licenses through a central administrator account or use volume licensing options.

Can I just reuse the original product key on a new computer?

No. Once a product key is redeemed, it becomes invalid for future activations. You must log in to the associated Microsoft account at office.com to download and reinstall the software on a new device.

How can I find out which Microsoft account is associated with my product key?

Without access to the original email or the computer where it was installed, you cannot look this up yourself. You will need to contact Microsoft Support and provide your product key and proof of purchase to help trace the linked account.

Installation & Activation