Microsoft Windows 10 Professional Full version 32/64 Bit, Digital Download - Microsoft Windows 10 is a step up in terms of operating systems from the much-maligned Windows 8 and this Professional version of the software is a great option for business and home users alike. How to check Windows 10 Product Key on your computer Wanting to do a clean install of Windows 10 on your PC device? If your device is installed with Windows 10 or upgraded from Windows 7 or Windows 8/8.1, you may need to find out your Windows 10 activation key from your computer before reinstalling system.
Hello Alan,
Thank you for visiting Microsoft Community and providing us with the detailed description about the issue.
As per the description, I understand that you have downloaded Windows 10 iso and now you want to purchase a product key.
I certainly understand your concern and will try my best to help you.
I really appreciate all your efforts in trying to fix the issue.
I would suggest you to refer to the suggestions provided by “Andre Da Costa” replied on January 26, 2015 in the following Microsoft Community link.
How to Activate and resolve common Product Key issues in Windows 10
For more Information:
I would suggest you to refer to the suggestions provided by “Andre Da Costa” replied on January 22, 2015 in the following Microsoft Community link.
Frequently Asked Questions: Windows 10
I hope this information is helpful.
Please do let us know if you need any further assistance, we will be glad to assist you.
Thank you.