Discovered Windows 10 is no longer supported.
Discovered Windows 10 is no longer supported.
With TPM 2.0 enabled, the processor should function properly, even if unofficially. The specific CPU model isn't detailed here. It seems the hardware is still compatible, so you don't need to upgrade your PC for Windows 11. Consider using a local account on Windows 11 instead of purchasing a new machine. You might save money by obtaining a key for IoT LTSC versions rather than paying extra fees, or simply use Rufus to handle updates manually while applying feature updates yourself.
Keep using Windows 10 until it stops functioning properly. Be aware that many users will still rely on it after the end of support. This is common with every operating system. It's not just a few thousand users—it's hundreds of thousands. I personally used Windows 7 until the end of 2021, and it performed perfectly. Everyone kept giving me warnings from Microsoft, but it worked just fine. The only groups that advise avoiding OS after EOL are usually network administrators managing large networks or those with a preference for safe options. Just like people who always check fluids and tire pressure before driving—switch to version 11 whenever necessary. It's just as bad as Windows 10, so the update will be equally disappointing.
Even without TPM, many unsupported CPUs function adequately. I tested an i3 540 for experimentation—it performed just fine and remained secure. The OP seems to require the system for work; when finances are at stake, it’s often better to limit exposure. It could also mean they need remote access to a specific machine, and the network admin has policies restricting vulnerable systems from accessing critical data. Alternatively, you might have overlooked the need for the computer to be used in a professional capacity.