Hi @nick griffin ,
Thanks for sharing your concerns to Microsoft Q&A.
To clarify a few points:
Why you're still seeing Windows 11 upgrade prompts:
Even if a device isn’t compatible, the Windows Update system may still occasionally flag the upgrade as available, particularly if some minimum requirements (like TPM or RAM) are borderline or misread. This isn't ideal and Microsoft continues to improve how eligibility is detected.
Why Microsoft continues pushing Windows 11
While it was previously said Windows 10 might be the "last version," that changed with evolving security needs and hardware innovations. Windows 11 includes features designed around newer chips and architectures, and Microsoft has shifted strategy post-COVID to focus more on hybrid work, security, and modern UI design.
Hopes this answer your questions?