You can then proceed to do a clean install by using recovery media or using the Reset function in What if Windows Doesn’t Activate?
If Windows 10 does not activate even after detecting an active Internet Connection, restart and try again.
Scan and Repair System files (SFC)The issues below are more likely to affect retail bought and volume license clients.
If you are unable to enter the product key: Press Windows key XClick Command Prompt (Admin)At the command prompt, type the following commands:-ipk xxxx-xxxx-xxxx-xxxx (allows you to replace the current product key with the specified)Hit Enter on your keyboard Exit the command prompt Restart your computer Try Activating again You were never running a genuine Windows 7 or Windows 8 license.
About MSDN or Tech Net Product Keys They are genuine Microsoft product keys; they are actually retail licenses, but it is intended for a particular product channel – either the Microsoft Software Developer Network (MSDN) or Tech Net for IT Professionals who pay a subscription fee.
Although these licenses are intended for evaluation purposes, the great thing about them, unlike trial Microsoft software, they do not expire.
It is also used as a mechanism for copy protection in addition to defining support rights, depending on the product channel from which the software was acquired: Retail, OEM, Volume License, or Trial.
I downloaded the ISO file, but Windows 10 setup is prompting me for a product key or indicates the product key does not work with this edition.The most notable being that Windows 10 is free for existing Windows 7, 8/8.1 users for the first year.Regardless of this, product activation remains a part of Windows 10.Please be aware that you cannot use the free upgrade offer to perform a clean install on the first attempt!You must first upgrade from the qualifying version of Windows 7 or Windows 8/8.1 (whether you do it through Windows Update or using the ISO file.) Ensure the upgrade is completed successfully and then ensure that it is activated.