As you can see, I'm getting this message when I'm a Windows Insider:
Also, I get this error message when using PC Health Check to see if I'm eligible for Windows 11:
I'm only using UEFI with Secure Boot enabled, and my PC doesn't come with Trusted Platform Module (TPM). Hmm...I'm wondering if Microsoft should make TPM completely optional on Windows 11 just like they did on Windows 10 and prior versions of Windows.
My PC's specifications are:
Processor: AMD FX-6350 Six-Core Processor @ 3.90 GHz
RAM: 32 GB
Graphics Card: NVIDIA GeForce GTX 960 with 4GB supporting DirectX 12 and WDDM 2.7
Internal Storage: 1 TB
Display: A screen resolution of 2560x1440 on a 27-inch monitor
As shown in the first screenshot above, it looks as though I'm stuck on Release Preview Channel. I only use it to receive bug fixes, improvements, and early app updates on my Windows 10 PC. However, I luckily don't plan to use either Dev or Beta Channel.