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#10
I'm also getting the error on my IP Dev machine. Installing gets to 44% then jumps to 100% then fails.
Weird, wouldn't install on an AMD computer today but did yesterday on an Intel machine.
Another weirdness, right-click of the Start button to get to System has changed, goes to Settings and System there goes to the same place as right-click of the Desktop. System in Control Panel still works as before.
Also NG install.
When I try to run Cumulative update .NET Framework 3.5 and 4.8 Windows 10 Next I get this install error: 0x800920004
I just noticed there is another update: Windows 10 Insider Preview 21370.1 (co_release) being downloaded to install; maybe this will fix the .NET error.
It finally worked for me after the second download.