How to Recover Preinstalled Microsoft Office Home & Student on a Reformatted Lenovo Laptop
Question details
The user needs to reactivate a preinstalled Microsoft Office Home & Student license on a Lenovo laptop after a system format, but they forgot the original Microsoft account email used for the initial setup.

- Product
- Microsoft Office Home & Student
- Device & OS
- Lenovo Laptop
- Scenario
- Trying to reinstall and reactivate a pre-bundled Office suite after a full system reset or format.
- Observed behavior
- Office cannot be reactivated because the digital license is tied to an unknown Microsoft account.
Gather any alternative email addresses or phone numbers you might have used when first setting up your Lenovo laptop, as these will be necessary to locate your forgotten Microsoft account.
Recover Your Forgotten Microsoft Account Username
Use Microsoft's official account recovery tool to find the email address linked to your preinstalled Office license.
Preinstalled Office licenses on modern laptops do not use a physical product key. Instead, the digital license is permanently injected into the Microsoft account that was signed in during the very first activation. To restore Office, you must identify this specific account.
Open a web browser and go to the official Microsoft 'Recover your username' page.
Type in a secondary email address or phone number that you associate with your primary accounts, then click 'Next'.
Check your secondary email or phone for a security code. Enter this code on the recovery page to prove your identity.
Review the list of matching usernames (emails) provided by Microsoft. Select the one you believe was used to set up the Lenovo laptop initially.

Reinstall and Reactivate Office with the Recovered Account
Once you have successfully recovered your account details, you can download and activate your Office Home & Student suite directly from your Microsoft dashboard.
Try WPS Office: A Free and Lightweight Alternative
If you cannot recover your Microsoft account and do not want to purchase a brand-new license, WPS Office is a highly compatible, free alternative. It offers a familiar interface and seamlessly opens, edits, and saves all your documents without the need for expensive subscriptions.
- 1. Download WPS Office: Visit the official WPS website and click the free download button for Windows.
- 2. Install the Software: Run the downloaded installer file and follow the quick on-screen instructions to set up the suite on your Lenovo laptop.
- 3. Open and Edit Your Files: Launch WPS Office and instantly open your existing Word, Excel, and PowerPoint documents without worrying about activation barriers.

Frequently Asked Questions
Can Lenovo provide me with my preinstalled Office product key?
No. Modern preinstalled Office licenses (Digital Product Keys) are linked directly to the first Microsoft account used to activate them. Lenovo does not keep a record of your personal Microsoft account or the digital product key.
What happens to my Office license if I change my laptop's motherboard?
Because preinstalled OEM licenses are often tied to the original hardware (specifically the motherboard), replacing it may trigger a deactivation. You will need to contact Microsoft Support with proof of the motherboard replacement to transfer the activation.
Is it possible to transfer my preinstalled Office Home & Student to another computer?
Preinstalled (OEM) licenses of Office Home & Student are typically tied to the original device they were purchased with and cannot be legally transferred to a different computer.
How do I activate Office if I bought my Lenovo laptop secondhand?
If the original owner activated the preinstalled Office suite, the digital license remains permanently linked to their personal Microsoft account. You cannot activate it without their account credentials. You will need to purchase your own license or use a free alternative like WPS Office.




