Can't enable .NET Environment in Windows 10 1903

Anonymous
2019-04-10T07:18:57+00:00

Well, this is a showstopper for me. I'm in the Release Preview ring & installed 1903 (18362.30) yesterday . Update went fine. No issues experienced.

Got a Cumulative Update to install today (KB4495666). Installed it & rebooted. Build is now at 18362.53. .NET framework was disabled & 90% of my applications will no longer run! In "Control Panel/Programs and Features/Turn Windows Features on or off", ".NET Environment" is unchecked. If I check it & hit "OK" it take about 10 seconds & says "Windows completed the requested changes". The .NET Environment, however, is still unchecked when I go back to "Turn Windows Features on or off" & >NET applications still don't work.

I've uninstalled all of the updates installed today (KB4495666 & KB4493478), but .NET is still utterly broken. I've read that this was an issue prior to the release of 18362 to the Release Preview ring but was supposed to have been fixed. Looks like this MAJOR bug was reintroduced with the cumulative update?

Windows for home | Windows 10 | Performance and system failures

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  1. Anonymous
    2019-04-11T07:59:05+00:00

    That /All command will work in the PowerShell commands, too, so I will add it to my post above. However, I think that the Features that you list are the Parent ones.

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  2. Anonymous
    2019-04-11T08:22:34+00:00

    I ran into the same problem as the questioner. Cannot open Visual Studio 2019, since .Net Framework broke.

    The dilemma is that, in this situation, you cannot run PowerShell since the broken .Net Framework, and it shows "cann't find mscoree.dll" (It's in Chinese")

    I solve the problem, and post the solution in Chinese community:

    https://answers.microsoft.com/zh-hans/insider/forum/all/%e5%85%b3%e4%ba%8e-windows/2517e4ed-3c37-42c1-a1a4-b5a806a912ac

    But the system that questioner has deprecated pkgmgr.exe, I just figure out how to use DISM instead.

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  3. Anonymous
    2019-04-11T10:59:58+00:00

    Unfortunately, one of the symptoms of this issue is that Powershell doesn't work

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  4. Anonymous
    2019-04-11T11:36:43+00:00

    Still no luck...

    Same outcome with all 4 commands. The DISM log from all 4 commands states...

    "Parent features must be enabled before this feature can be enabled."

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  5. Anonymous
    2019-04-11T13:12:58+00:00

    Okay, I never go this far, maybe let's try remove '/All' command and do it again? Seems no '/All', no parent features needed.

    Like this:

    Dism /online /Enable-Feature /FeatureName:Microsoft-Windows-NetFx3-OC-Package

    Dism /online /Enable-Feature /FeatureName:Microsoft-Windows-NetFx4-US-OC-Package

    Dism /online /Enable-Feature /FeatureName:Microsoft-Windows-NetFx3-WCF-OC-Package

    Dism /online /Enable-Feature /FeatureName:Microsoft-Windows-NetFx4-WCF-US-OC-Package

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