Complete manual to activate Microsoft Office 2021, 2019, 2016 and 2024 with OEM key

In this article, we present you two detailed methods to activate Microsoft Office in its 2021, 2019, 2016 and 2024 versions using an OEM key: via phone call and using the tool GETCID. Both processes will allow you to obtain the Confirmation ID required to complete activation.

Prerequisites

• Valid OEM key: A 25-character key for the corresponding version of Microsoft Office.
• Product installed: Download and install the program from the official links, if you do not have it installed yet.

Common steps to start activation

1. Start an Office program: Open any application in the suite (Word, Excel, PowerPoint, etc.).
2. Access the activation wizard:
   • If the wizard does not appear automatically, go to File > Account > Change Product Key.
   • Enter the 25-character OEM key and press Following.
3. Select the activation method: When prompted by the wizard, choose Activate by phone and click on Following.

Method 1: Activation via phone call

1. Get the installation ID:
   • A unique code called will appear Installation ID.
   • Select your country or region to view the corresponding phone number.
2. Call the number indicated:
   • Make the call and follow the instructions of the automated system.
   • When prompted, enter the Installation ID.
   • Note: If the system asks for the number of activated devices, respond with 0.
3. Receive confirmation ID: The system will provide you with a code called Confirmation ID. Write it down carefully.
4. Complete the activation: Enter the Confirmation ID in the wizard and click Following.

Method 2: Activation with GETCID Tool

1. Get the installation ID: Similar to the previous method, copy the Installation ID shown in the wizard.
2. Access the GETCID tool: Go to my-account/get-cid.
3. Generate the confirmation ID:
   • Enter the Installation ID in the tool form.
   • The tool will automatically generate the Confirmation ID.
4. Complete the activation:
   • Return to the activation wizard on your device.
   • Enter the Confirmation ID generated and click on Following.

Activation verification

Once the process is complete, the product status will change to ActivatedTo check, open any Office application and go to File > Account to confirm activation details.

Important notes

• OEM keys are tied to the original hardware and cannot be reused on other devices.
• If you encounter problems during activation, use the tool GETCID or contact Microsoft support.