Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
To get an Office Confirmation ID, first open the Office Activation Wizard on the device that needs activation and choose the telephone activation option so the Installation ID is shown. Then, on a device with internet access:
- Go to the Product Activation Portal: https://aka.ms/WindowsActivate
- Sign in and select Activate a Microsoft Product.
- Enter the Installation ID from the Office device.
- If the activation request is approved, the portal returns a Confirmation ID.
- Enter that Confirmation ID back into the Office Activation Wizard to complete activation.
If the original product key is invalid, blocked, or not transferable to the new device, the portal may not provide a Confirmation ID.