Hi,
This is now affecting a lot of people with perfectly good Windows 10 computers that are not able to be upgraded according to Microsoft's requirements.
These are mainly, Processor is too old
https://learn.microsoft.com/en-us/windows-hardware/design/minimum/supported/windows-11-supported-intel-processors or your computer does not have a TPM 2.0 chip and UEFI Secure Boot - used as part of the BIOS for security on the computer.
There has been lots said in technology forums and media that this is then creating far to much electronic waste and lots of people cannot afford to go out and buy a new computer just to get Windows 11 and Microsoft should reduce the requirements, but no joy. There are ways around these that Microsoft do not stop you doing, but then they are able to stop some further upgrades happening automatically, meaning you have to jump through hoops again to get the ' newer ' version.
Like a few years ago when Windows XP & Windows 7 reached end-of-support, you can carry on using Windows 10, BUT there will be no more security updates later this year which makes it more open to problems or being infected with a virus.
An option is to install Linux instead of Windows, but then there is a very limited amount of software you can use compared to Windows, and for Genealogists that use programs like RootsMagic, Legacy Family Tree etc, rather than an online tree in Ancestry or Find My Past, they will not work on Linux