I am having the same issue as well.
Your PC does not meet the minimum hardware requirements for Windows 11. Your device may continue to recieve Insider Preview builds until Windows 11 is generally available, at wich time it is recommended to clean install to Windows 10.
CPU: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz 3.70 GHz
RAM: 32GB
GPU: 1060 SC
Storage: 1TB SSD
Been a Insider for nearly a year.
