As the lifespan of Windows 10 draws slowly towards its end (14th October 2025) a lot of computers won’t be able to run Windows 11 and the Windows PC Health Check isn’t that useful in explaining what part of your computer is preventing you upgrading to Windows 11. This is where WhyNotWin11 comes in.
What is WhyNotWin11?
WhyNotWin11 is a free program that helps identify why your PC is not Windows 11 Release Ready.
This gives you exactly what is preventing Windows 11 from installing.
Additionally from the Settings cog you can access guides for converting the Disk Partition Type to GPT; enabling Secure Boot; enabling the TPM; skipping the CPU & TPM checks as well as a video on how to install Windows 11.
