Sorry about run on sentences and any typos: I’m trying to get this posted quickly before this day runs me over with “honey do’s” from wifey and lots of springtime chores too...! :-)
Here are my results using the microsoft “PC Health Check” you can download for my Gigabyte Z97X-UD5H desktop pc I built in 2015. It is fast and I have had Windows 11 installed directly on it but removed it and went back to Windows 10 as the main operating system.
I have Windows 10 64-bit and I installed Windows 11 in the free Oracle VirtualBox program. The requirement below is to get you to buy a new computer at high cost vs buying a re-furbished one as I did this past Feb for $135 for a HP z240 SFF at Amazon. That one also does not meet the requirements and it is from 2018... I can run Windows 11 on it if I want with some registry changes or as described above in VirtualBox.
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This PC doesn’t currently meet Windows 11 system requirements
Check to see if there are things you can do, and if not, you’ll keep getting Windows 10 updates.
This PC must support Secure Boot
More about enabling Secure Boot
TPM 2.0 must be supported and enabled on this PC.
More about enabling TPM 2.0
TPM: TPM not detected
The processor isn’t currently supported for Windows 11.
More about supported CPUs
Processor: Intel® Core™ i5-4690K CPU @ 3.50GHz