Uninstall & Reinstall Issues

How to Reinstall and Reactivate Microsoft Office Professional Plus 2016

WPS Content Manager Sep 28, 2026 869 views

Question details

The user needs to reinstall and reactivate Microsoft Office Professional Plus 2016 after it was removed from their device.

How to Reinstall and Reactivate Microsoft Office Professional Plus 2016

Product: Microsoft Office Professional Plus 2016
Device & OS: not provided
Scenario: Reinstalling and reactivating a removed instance of Microsoft Office.
Observed behavior: Microsoft Office Professional Plus 2016 is missing or uninstalled, requiring a fresh installation and license verification.

Before you start

Ensure you have access to your 25-character product key, the associated Microsoft account, or the contact details for your organization's IT administrator.

Solution 1Recommended

Reinstall via Your Associated Microsoft Account

If your Office 2016 license is linked to a Microsoft account, you can download the installer directly from the Microsoft dashboard.

Retail versions of Office are typically permanently linked to the Microsoft account used during the initial purchase or first-time setup.

Sign in to Microsoft

Navigate to office.com and sign in using the Microsoft account associated with your Office 2016 license.

Locate your subscription

Click on your account profile icon and navigate to 'Services & subscriptions' to find your Office Professional Plus 2016 product.

Download the installer

Click the 'Install' button next to the product name to download the correct setup executable to your computer.

Install and activate

Run the downloaded installer. Once finished, open any Office application like Word and sign in when prompted to automatically reactivate your license.

Reinstall via Your Associated Microsoft Account

Volume Licensing Exception: Because Professional Plus is frequently distributed via volume licensing, it might not appear in standard Microsoft accounts. In that case, you may need to use the Volume Licensing Service Center (VLSC).

Solution 2

Activate Using the Original Product Key

Use this method if you have the original 25-character product key and an offline installation file.

Solution 3

Contact Your IT Administrator for Enterprise Volume Licenses

If your copy of Office Professional Plus 2016 was provided by your employer or school, you must request assistance from your administrator.

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1. Download the installer: Visit the official WPS Office website and click the free download button for your operating system.
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Frequently Asked Questions

Can I reinstall Office 2016 if I lost my product key?

If your license is digitally linked to a Microsoft account, you do not need the product key. You can reinstall and reactivate it directly from the 'Services & subscriptions' page at office.com. If it is an enterprise volume license, you must contact your IT administrator.

Why does Office Professional Plus 2016 say 'Activation Failed' after reinstallation?

This error usually occurs if the product key has been used on too many devices, or if a KMS-activated enterprise license has lost connection to the host company's network. Try connecting to your organization's VPN or contacting Microsoft Licensing Support.

Is Microsoft Office 2016 still supported by Microsoft?

Mainstream support for Office 2016 ended in October 2020. However, extended support for crucial security updates is scheduled to continue until October 14, 2025.

Where can I download the Office Professional Plus 2016 ISO file?

For retail versions, the installer can be downloaded directly from your Microsoft account page. For volume licensing editions, administrators must log into the Microsoft Volume Licensing Service Center (VLSC) to obtain the official deployment ISO.

Installation & Activation