There’s no official Windows 12 beta. Microsoft hasn’t announced or released it. The only legit way to test new features is through the Windows Insider Program.
Answer from Jonathan Deives on learn.microsoft.comVideos
Why is no one talking about Windows 12/25?
Already working on Windows 12?! - BetaArchive
where will windows 12 beta be when it's here and can i have it when it comes out?
Q3 on Windows 11 Beta
Where did I get the drivers? I asked on QQ for them, don't trust me, go to QQ and ask FiiO yourself.
More on reddit.comAnybody know anything about windows 12 beta testing, and where to download?
Hi Circus Baby,
There are no confirmation yet or announcement from Microsoft about Windows 12.
Hello Circus, welcome to the Microsoft community, I'll be happy to help you today;
When Windows 12 beta is released you should be able to download it through the Windows Insider program;
See more information at the link below:
Disclaimer: There are links to non-Microsoft websites. The pages appear to provide accurate and secure information. Watch out for ads on websites that may advertise products that are often classified as PUPs (Potentially Unwanted Products). Thoroughly research any product advertised on websites before deciding to download and install it.
Hope this helps, see you soon!