Windows Upgrade Help and more

Thanks! I checked and my RAM is in dual-channel. Could the problem be my processor even if it's not that old?

I’m trying to upgrade my Windows 10 PC to Windows 11, but the setup keeps failing. The PC Health Check app says my RAM is the issue, even though I have 6GB installed. The error code I get is "This PC doesn't meet the minimum system requirements." I thought 4GB was the minimum? Is 6GB not enough, or ...