This method is primarily for administrators managing Volume License keys (MAK/KMS) or users whose Office installation lacks the standard graphical wizard. It is faster and more precise once you master the commands.
The Ultimate Guide: Converting Microsoft Office Installation ID to Confirmation ID
These are scams. The math behind the IID/CID is a cryptographic algorithm unique to Microsoft. Only Microsoft’s internal servers can generate a valid CID. Those websites are either: microsoft office installation id to confirmation id
Run the command matching your installed Office version and architecture: cd "C:\Program Files\Microsoft Office\Office16" Use code with caution. Office 2016 / 2019 / 2021 / 365 (32-bit): cd "C:\Program Files (x86)\Microsoft Office\Office16" Use code with caution. 3. Retrieve the Installation ID via Command Line Type the following command and press Enter : cscript ospp.vbs /dinstid Use code with caution.
If you see this error, ignore it. It is often a bug. Use the phone numbers found on the official Microsoft Support Page to continue anyway. This method is primarily for administrators managing Volume
Look below your Installation ID list and click the button or text area that says . 3 Carefully type the numbers into boxes A through H . 4 Click Next , then click Close or Finish .
Call the number shown on your screen.
Before writing code, you must strictly understand the structure of the two data entities involved Installation ID (IID):
Mis-typed digits or a mismatch in the number of digits per group. The math behind the IID/CID is a cryptographic