Microsoft Office Installation Id To Confirmation Id (2026)

To develop a feature that processes a Microsoft Office Installation ID (IID) and generates a Confirmation ID (CID)

For every computer, record four things:

Look at in the wizard window. You will see your 63-digit Installation ID displayed there. Converting Installation ID to Confirmation ID

If you are stuck navigating the phone menu: microsoft office installation id to confirmation id

Dial the toll-free or toll number listed under of the Activation Wizard. Listen to the automated voice prompts.

, you need to simulate the exact behavior of Microsoft’s self-service phone activation protocol

The digits are divided into 8 groups of 6 numbers (labeled A through H). To develop a feature that processes a Microsoft

You can also use the Windows software licensing management tool:

Microsoft has modernized this process. While it's still called "phone activation," you can often do it digitally.

Replace the product key with a valid license and regenerate a new IID. Listen to the automated voice prompts

Open any Microsoft Office application (such as or Excel ).

Click the Windows Start menu, type cmd , right-click , and select Run as administrator . 2. Navigate to Your Office Directory

A retail MAK is for a single license (one or a few devices) and is typically used by individuals. A Volume License MAK is for organizations and can activate dozens or hundreds of devices. The phone activation process for using IID→CID is generally the same, but volume licenses often require specific Volume Licensing Support channels.

A Confirmation ID is typically valid indefinitely for the specific installation it was generated for. However, if you reinstall your operating system or make major hardware changes, you will likely need to generate a new CID.