Product Key Issues

Fix Microsoft Office Professional Plus 2013 Product Key Not Valid

Aamir Naveed Akram Oct 13, 2026 868 views

Question details

The user is unable to activate Microsoft Office Professional Plus 2013 on a new laptop because the previously purchased product key is showing as not valid.

Fix Microsoft Office Professional Plus 2013 Product Key Not Valid

Product: Microsoft Office Professional Plus 2013
Device & OS: not provided
Scenario: Attempting to activate a previously purchased Office 2013 suite on a replacement laptop after the original device was destroyed.
Observed behavior: The Office activation wizard rejects the product key, stating it is not valid, preventing the software from being activated.

Before you start

Ensure you have the exact 25-character product key from your original purchase receipt and verify that your laptop has a stable internet connection to communicate with the activation servers.

Solution 1Recommended

Verify License Authenticity and Edition Matching

Check if the product key matches the exact installed Office edition and confirm the license is authorized for individual consumer transfer.

Many Office Professional Plus keys sold online at steep discounts are Volume Licenses intended for corporate environments. Microsoft routinely audits and blocks these unauthorized keys when used by individual consumers.

Additionally, a product key will only work for the specific version it was purchased for. A Professional Plus key will not activate a standard Home & Student installation.

Check installed version

Open any Office application (like Word), click on 'File' in the top left corner, and select 'Account' to view the exact installed Office edition.

Match with your key

Verify that the installed edition explicitly says 'Microsoft Office Professional Plus 2013'. If it does not, uninstall it and download the correct installer.

Contact Microsoft Support

If the editions match, contact Microsoft Support via their official website. Provide your proof of purchase so they can check if the key was blocked due to a Volume Licensing violation.

Verify License Authenticity and Edition Matching

Volume Licenses: If Microsoft confirms the key was an unauthorized Volume License, it cannot be recovered or unblocked for personal use.

Solution 2

Purchase a New Legitimate Office License

If the original key was deactivated for violating terms of service, you will need to acquire a new, official license to use Microsoft Office.

Free Microsoft Office alternative

Try WPS Office When Microsoft Office Activation Fails

If your Microsoft Office 2013 product key is invalid and you prefer not to purchase an expensive new license, WPS Office is a powerful, free alternative. You can continue working immediately without dealing with complicated product keys or activation blocks.

1. Download WPS Office: Visit the official WPS website and download the free installer for your device.
2. Install the software: Run the downloaded file and follow the simple on-screen instructions to install the suite.
3. Open your files: Launch WPS Office and directly open your existing Word, Excel, and PowerPoint documents without losing any formatting.

Completely free to use without requiring complex activation keys.Seamless format compatibility with Microsoft Office files (.docx, .xlsx, .pptx).Lightweight software that runs extremely fast on both old and new laptops.Familiar tabbed user interface, ensuring you can transition with zero learning curve.

Frequently Asked Questions

Why did my Office 2013 key work on my old laptop but not my new one?

If you purchased a discounted Professional Plus key online, it was likely an organizational volume license. These keys often work initially but get blocked by Microsoft during later verification checks or when attempting to activate them on a new machine.

Can I legally transfer my Office 2013 license to a new computer?

Retail licenses purchased directly from Microsoft can typically be transferred to a new computer if the software is uninstalled from the previous device. However, OEM licenses (pre-installed) and unauthorized Volume licenses cannot be transferred.

How can I tell if a Microsoft Office product key is legitimate before buying?

Legitimate product keys are sold at standard retail prices directly by Microsoft or well-known, authorized retailers. If you see 'Professional Plus' editions being sold on third-party marketplaces for unusually low prices, they are almost certainly unauthorized volume licenses.

Will I lose my documents if I cannot activate Microsoft Office?

No. Your documents are stored locally on your laptop's hard drive or in your cloud storage. Even if Office is unactivated, your files remain safe. You can view and edit them by opening them with a free alternative like WPS Office.

Installation & Activation