Hi it would help me if you can provide the name of your CPU.
Your PC might be more than powerful to run Windows 11, but the majority of incompatibility comes from the motherboard not having a TPM 2.0 chip. That can be resolved if you buy a TPM module and install it (if your motherboard has a TPMS1 header). This might cause some trouble because you have to find the exact TPM module for your motherboard provider (Asus, Gigabyte, Asrock etc).
There is a simpler way. Most recent CPUs(AMD Ryzen(2017-present) lineup does support it; not sure for older versions) support fTMP, by default it is disabled. So you need to go in BIOS to enable it. Follow the steps:
1. Restart PC if ON, or open it.
2. While the boot screen animation of your motherboard provider(ASrock,Asus,Gigabyte) press continously on F2 or Del (the key might vary between providers), until it gets you to the BIOS.
3. Go to ADVANCED tab
4. Open CPU CONFIGURATION
5.There is an option called AMD fTPM switch, which is currently on DISABLED. Switch it to AMD CPU fTPM.
6.Go to EXIT tab with the option SAVE & EXIT.