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
    2019-04-11T03:02:30+00:00
    1. creat .bak file, the content is:

    start /w pkgmgr /iu:Microsoft-Windows-NetFx3-OC-Package

    start /w pkgmgr /iu:Microsoft-Windows-NetFx4-US-OC-Package

    start /w pkgmgr /iu:Microsoft-Windows-NetFx3-WCF-OC-Package

    start /w pkgmgr /iu:Microsoft-Windows-NetFx4-WCF-US-OC-Package

    1. run as admin
    2. solve the problem

    https://answers.microsoft.com/zh-hans/insider/forum/insider\_wintp-insider\_update-insiderplat\_pc/%e5%85%b3%e4%ba%8e-windows/2517e4ed-3c37-42c1-a1a4-b5a806a912ac?tm=1554947302513

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  2. Anonymous
    2019-04-11T03:29:49+00:00

    Has made no difference. I get the following error when the 3rd line runs.

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  3. Anonymous
    2019-04-11T03:31:02+00:00

    Indeed, something isn't right. I've thought about doing a "Reset this PC", but haven't gone there yet.

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  4. Anonymous
    2019-04-11T03:39:50+00:00

    You could download 18362.53 from UUP dump and do a manual in-place update.

    You won't lose apps or files. Instructions here (1st post, 2nd half) applies to any build number.

    The script will take longer than usual because it will incorporate the CUs into the ISO image.

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  5. Anonymous
    2019-04-11T03:59:19+00:00

    You could download 18362.53 from UUP dump and do a manual in-place update.

    You won't lose apps or files. Instructions here (1st post, 2nd half) applies to any build number.

    The script will take longer than usual because it will incorporate the CUs into the ISO image.

    Good idea. I'll do that tonight. Thanks.

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