Windows 11 and your hardware

I have NOT done this (yet... I have to get my extra PC back out of storage, and turn of my main PC to connect the extra to my monitor) but I found a site with a Registry change that says it will allow installing Win11 without secure boot... and this same information is on 2 other sites, so I think it is valid

Bypass secure boot requirement with a Registry change
https://www.wintips.org/how-to-install-windows-11-without-tpm-and-secure-boot/
1. Press Windows image + R keys to open the run command box.
2. Type regedit and press Enter.
3. In Registry Editor navigate to the following key:
HKEY_LOCAL_MACHINE\SYSTEM\Setup
4a. Right-click on the Setup key and choose New Key.
4b. Name the new key LabConfig and press Enter.
5a. Right-click at an empty space on the right pane and select New > DWORD (32-bit) Value.
5b. Name the new value BypassTPMCheck and press Enter.
6. Repeat steps 5a & 5b and create two more values with names:
BypassRAMCheck

NOTE - one other site does not mention BypassRAMCheck

 --    since I have 32Gig I may or may not add this value
BypassSecureBootCheck
7. Open one by one the three newly created values and type 1 at the value data box.
8. After all modifications, you should have the image below: (image on web page)
9. Close the Registry Editor and reboot your PC.
10. Install Windows 11.

OR

Download the Registry changes to run and install for you https://m.majorgeeks.com/content/page/bypass_tpm.html
Download Bypass Secure Boot and Trusted Platform Module and extract the two files.
Double-click on Windows 11 - Bypass TPM And Secure Boot.reg or Windows 11 - Bypass TPM And Secure Boot DEFAULT.reg (Default).

NOTE - clicking the DEFAULT from the zip removes the new keys and puts the Registry back to the default
Click Yes when prompted by User Account Control.
Click Yes when prompted by Registry Editor.
Click OK when prompted by the Registry Editor. Reboot.

Well, half success and half failure

I updated the bios from 1602 to 1620 and tpm is active

Then the Win11 checkup said I must have secure boot enabled

I spent 2+ hours reading and checking/changing every bios setting I could find... secure boot REQUIRES uefi 'only'

For my motherboard to boot from the M.2 'ssd stick' on the motherboard I must have uefi + legacy enabled... uefi only won't boot

So... I stay with Win10 until such time as Microsft FORCES me to upgrade... and that will require a new motherboard... RATS!!!

Hmm... after building several computers over the years, I had a bunch of extra parts that I used, with a new motherboard, to build a spare computer

It has an ASUS Z490-P motherboard https://www.amazon.com/ASUS-Prime-Z490-P/dp/B07ZT3F95V/ which is the same as in my computer

I may just do what it says in https://www.asus.com/support/FAQ/1012152/ to update the BIOS to be Win11 compatible as a test

Before updating to Win11 I will, of course, use my backup program to do a full boot drive backup

The product I bought and use is at http://www.terabyteunlimited.com/image-for-linux.htm
Note that I get NO benefit if you buy the program, I only use it and like what it does