I did not notice this was an older question but I supplied the answer.
You are conflating two separate things. You need to supply the installation ID, not the product ID. You are either providing the wrong installation ID or attempting to activate a different version.
I suggest you perform the following to resolve your issue.
Open an elevated command prompt. From this C:\Windows\System32 prompt or similar, execute:
- slmgr.vbs /ipk YourProductKey - Installs or updates your product key
- cscript slmgr.vbs /dti - provides your installation ID in the command line (making it easy to copy and paste).
- Provide this installation ID to the activation site. If the site is web-based, paste the key. If you receive the link by phone, I suggest you execute the temporary link on your desktop or send the key in email or Teams to allow you to easily paste it. You will obtain the confirmation ID from this action. You can then take similar steps to copy and paste the ID to your server.
- cscript slmgr.vbs /atp YourConfirmationID - Activates your Windows
- cscript slmgr.vbs /dlv - Displays your activation status in the command line. If done properly, the status will be licensed. Example from my Windows 10 machine: C:\Windows\System32>cscript slmgr.vbs /dlv Microsoft (R) Windows Script Host Version 5.812 Copyright (C) Microsoft Corporation. All rights reserved. Software licensing service version: 10.0.19041.7181 Name: Windows(R), Professional edition Description: Windows(R) Operating System, RETAIL channel Activation ID: Application ID: 55c92734-d682-4d71-983e-d6ec3f16059f Extended PID: 03612-03308-000-000000-00-1033-19042.0000-3042020 Product Key Channel: Retail Installation ID: Use License URL: https://activation-v2.sls.microsoft.com/SLActivateProduct/SLActivateProduct.asmx?configextension=Retail Validation URL: https://validation-v2.sls.microsoft.com/SLWGA/slwga.asmx Partial Product Key: License Status: Licensed Remaining Windows rearm count: 1001 Remaining SKU rearm count: 1001 Trusted time: 5/2/2026 12:17:05