How to activate Windows 10 with Windows 7 activation key

How to activate Windows 10 with Windows 7 activation key

This is very simple solution for these who installed Windows 10 but have no activation key for Win10.
If you have old laptop anywhere in house and you are not using it or its unusable broken etc. 

Just check on the bottom of the laptop for Windows 7  product key it should look something like this: 

VQB3X-Q3KP8-WJ2H8-R6B6D-7QJB7

Just to remember that if you installed Windows 10 Home then use Windows 7 Home Premium product key and if you installed Windows 10 Pro then use Windows 7 Professional product key.
Or if you don’t have Windows 7 key available then you can purchase one for very small fee from sites like eBay etc. Just be careful there’s all sort of scammers around  
It is guaranteed to work since i installed windows 10 on many laptops and always used windows 7 product key and never had any problems.