You say upgrading from Win7 to Win10 is still free, however, I've found confusing information about this process. The "upgrading" web page to which you provided the link says,...we strongly suggest upgrading to Windows 10 it's still free.
Are you certain it's "freezing" or just taking a very long time with a high priority process? Such can really slow things down to the point of near inoperability...especially if you leave your PC on for long periods of tiem and there isn't much free memory or cache to work with....
My win7 pc keeps frezing at 2.12am every night without fail.
The COA you need to use to install Windows 10 is a Windows 7 or 8 Coa not currently in use.You say upgrading from Win7 to Win10 is still free, however, I've found confusing information about this process. The "upgrading" web page to which you provided the link says,
"Create Windows 10 installation media
To get started, you will FIRST need to have a license to install Windows 10. You can then download and run the media creation tool. For more information on how to use the tool, see the instructions below."
Yet ZDNET and others say the following:
"As of April 2020, you can still use Microsoft's free upgrade tools to install Windows 10 on an old PC running Windows 7 or Windows 8.1. No product key is required, and the digital license says you're activated and ready to go."
I'm assuming people are using "license" and "product key" interchangeably???. Otherwise, where is the "license" that the download page says is required to install Win10?
I'd assume some others would be wary about writing over an existing Win7 installation only to find out AFTER THE FACT that this "digital license" is a sure thing.
(of course, one should have a full system backup of their Win7 installation (and anything important on the same disk) before trying the update.