Understanding Microsoft Office 2016 Professional Plus (Build 16.0.4266.1001)
If you have stumbled across a link for "Microsoft Office 2016 Pro Plus 16042661001," you are likely looking at the original release build
of the software from late 2015. This specific version string, 16.0.4266.1001
, identifies the baseline MSI (Microsoft Installer) version often used for corporate volume licensing. What is Version 16.0.4266.1001?
This version is the initial, "out-of-the-box" release of Office 2016 Professional Plus. While it contains the classic suite—Word, Excel, PowerPoint, Outlook, and OneNote—it is significantly outdated compared to modern iterations. Key things to know about this specific build: Volume License Baseline : It is typically associated with the Microsoft Office 2016 Volume License Pack used by IT administrators for network-based activation. Static Version Number
: Users often notice that even after applying updates, the version number in "Add/Remove Programs" may stay as 16.0.4266.1001 , even though the actual executable files (like Outlook.exe ) have been patched to a higher version. Is It Safe to Use?
End of support for Office 2016 and Office 2019 | Microsoft Support
Support for Office 2016 and Office 2019 ended on October 14, 2025 and there will be no extension and no extended security updates. Microsoft Support Microsoft Office 2016 Volume License Pack
Download Microsoft Office 2016 Volume License Pack from Official Microsoft Download Center. Office 2016 Version Number - Spiceworks Community microsoft office 2016 pro plus 16042661001 v link
You're looking for information on Microsoft Office 2016 Pro Plus, specifically version 1604 (build 6769.2016).
Here's what I found:
Microsoft Office 2016 Pro Plus
Microsoft Office 2016 Pro Plus is a subscription-based version of the Microsoft Office suite, which includes popular applications like Word, Excel, PowerPoint, Outlook, Publisher, and Access.
Version 1604 (build 6769.2016)
This version, also known as the "April 2016" update, was released on April 26, 2016. Here are some key features and fixes:
Activation and Licensing
As a Pro Plus version, Office 2016 Pro Plus requires activation with a valid product key or through a Volume Licensing agreement. This version is typically used in business or organizational settings. New features:
Links
I couldn't find a direct link to download Office 2016 Pro Plus version 1604, as it's an older version. However, I can suggest some alternatives:
If you're looking for a valid product key or a way to download Office 2016 Pro Plus, I recommend:
Please be aware that using older versions of Office may pose security risks, as they may not receive ongoing support or updates. It's always recommended to use the latest version of Office to ensure you have the latest features, security patches, and support.
The reference Microsoft Office 2016 Professional Plus 16.0.4266.1001
identifies the specific release build of the Office 2016 suite that uses Volume Licensing (VL). This particular version is significant for IT administrators as it represents the base "Release to Manufacturing" (RTM) build from November 2015. Microsoft Learn Key Build Details Version Number: 16.0.4266.1001. License Type:
Typically associated with Volume Licensing (VL) for organizations. Release Date: Originally released around November 2015. Support Status: Microsoft ended official support for Office 2016 on October 14, 2025
. No further security updates or technical support will be provided for this build. Microsoft Learn Common Issues & Context Improved data analysis and visualization in Excel Enhanced
This specific build string often appears in technical forums and system administration logs for the following reasons:
End of support for Office 2016 and Office 2019 | Microsoft Support
Support for Office 2016 and Office 2019 ended on October 14, 2025 and there will be no extension and no extended security updates. Microsoft Support
Office 2016 Pro Plus was sold primarily through Volume Licensing for businesses and schools. Mainstream support from Microsoft ended on October 13, 2020, and extended support ended on October 14, 2025. This means that as of now, Office 2016 is nearing (or has reached) its end-of-life, making it less secure than newer versions like Office 2019, 2021, or Microsoft 365.
Best for: Basic home or student use without subscriptions.
If you specifically need Office 2016 Pro Plus (maybe for legacy compatibility with old Access databases or macros), you can purchase legitimate retail keys from:
Price: Expect $50–$150 for a legitimate, never-used volume license key. Be extremely wary of keys sold on eBay or Reddit for $5–$20 – they are almost always MSDN or TechNet keys that are already blocked or will be soon.
No official Microsoft product key, build number, or version string resembles 16042661001. Let's break down why this identifier is almost certainly fraudulent.