If your PC fails the compatibility checker, stay on Windows 10 . It gets security updates until October 14, 2025 . Use that time to save for a new PC.

You don’t actually need a separate tool to check compatibility. The Windows 11 Installation Assistant runs the same checks silently.

Microsoft has made one thing clear with Windows 11: Security is non-negotiable. Unlike the relatively lax upgrade path from Windows 7 to Windows 10, moving to Windows 11 requires specific hardware:

Using the Windows 11 Compatibility Checker Tool is a straightforward process:

One of the most useful features of a Windows 11 Compatibility Checker tool (whether it is Microsoft’s official "PC Health Check" app or a third-party alternative like ) is its ability to provide specific, actionable reasons for incompatibility rather than a generic "This PC can't run Windows 11" message.