.Net Framework 3.5 Will Not Install Error 800f081f Powershell Shows It Removed

.Net Framework 3.5 will not install. You get an error 800f081f .

This is due to a bad patch.. or two.

Easily fixed

So In summary , you try to install .Net 3.5  using PowerShell and you get the following error


If you run Get-WindowsFeature it shows Net-Framework-Core removed


If you try to install it via DISM


And DISM error log shows


The reason for this issue is that Microsoft released a bad patch that removed the .Net Framework 3.5 from the image, if it had never been installed….

The problem was:

After you install security update 2966827 or 2966828 there was an issue that prevents the optional Microsoft .NET Framework 3.5 feature from being enabled (

So the solution is to :

Install from https://support.microsoft.com/en-nz/kb/3005628  – Windows8.1-KB2966828-x64.msu  that fixes the problem (but does not re-install .net3.5)
Then install the feature with an alternate location, as you have been trying.


Install-WindowsFeature –name NET-Framework-Core –source D:\sources\sxs

It should now install the feature successfully











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