For those of you still on Win7, fear not, you can still do three free upgrade to Win10 as long as you have a licensed copy of Win7 SP1 or Win8.1 on your computer.
Go to “Download Windows 10” and select the “Create Windows 10 installation media”.
Insert a USB thumb drive (minimum 8 GB) in your computer, click on the “Download Tool” button, and follow the directions.
The tool will create an installation copy of the Win10 OS on your thumb drive.
When you’re done, you can launch the installation from the thumb drive and follow the directions.
Check out my earlier blog post “In-place Upgrade from Win7 or Win8/8.1 to Win10” for more information.