Some of you reported back to me that you are not able to open the ROOT File System DMG of the iOS 10.3 Beta 2 on Windows using TransMAC or PowerISO, so I decided to inspect what's Windows' issue with the new Apple Format introduced in iOS 10.3 Beta.
In the video I will show you what you did wrong and the fact that, you can, in fact open iOS 10.3 Beta DMG file on Windows using TransMAC with no problem.
The error some people were getting is "No MAC HFS Volume Found". This is a very common error when instead of using the correct ROOT FS you open one of the two Ramdisks (that are considerably smaller). The ramdisks of iOS 10 are still compressed (not encrypted) that's why you can't open them, but you don't need to deal with them anyways.
Warning! This applies for the moment for 32-Bit. I will carry out some tests on x64 DMG as well to see maybe there is a problem, but most likely there isn't. The HFS error appears on both 32-Bit and 64-Bit if you open the wrong file.