This data may change after the October 5 release:
Possible paths for Windows 7:
7 > upgrade to 10 (2004 or 20H1 or higher) > 11
7 > clean install to 10 > 11
7 > clean install to 11
Possible paths for Windows 8:
8 > 8.1 > upgrade to 10 (2004 or 20H1 or higher) > 11
8 > 8.1 > clean install to 10 > 11
8. 1 > clean install to 11
Possible paths for Windows 10:
10 (2004 or 20H1 or higher) > upgrade to 11
10 > clean install to 11
https://learn.microsoft.com/en-us/windows/deployment/upgrade/windows-10-upgrade-paths
https://www.tenforums.com/tutorials/23354-clean-install-windows-10-directly-without-having-upgrade-first.html
https://www.tenforums.com/tutorials/139745-upgrade-windows-10-windows-7-free.html
https://www.microsoft.com/en-us/windows/windows-11-specifications#:~:text=Your%20device%20must%20be%20running,in%20Settings%3EUpdate%20and%20Security.&text=1%20gigahertz%20(GHz)%20or%20faster,on%20a%20Chip%20(SoC).
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Please remember to vote and to mark the replies as answers if they help.
On the bottom of each post there is:
Propose as answer = answered the question
On the left side of each post: Vote = a helpful post
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