For PCs that can't properly run the PC Health Check tool, there are a few third-party tools that IT admins can try. WhyNotWin11 is a project available on GitHub that runs as a standalone Windows application. It reports on a series of checks that it runs on target PCs, such as CPU compatibility and storage availability. The application lists the requirements for Windows 11 and identifies which ones the target PC does and does not meet (Figure 5).