You bought a PC / laptop after the day Windows 10 free upgrade is over or just decided you would like to upgrade your Windows 7+ machine ?
And Microsoft is charging around £100 and upwards depending on the version you select ?
Fear not Microsoft hasn’t actually ended its free upgrade it seems. They have just hidden the link to get it from.
Microsoft seems to be offering this upgrade to people requiring assistive technologies but makes no restriction and is fully aware of people using it plus although has not announced and end to this offer, I guess it would be better to do it ASAP if you have an inkling to do so.