.NET Framework 3.5 installation errors : 0x800F0954

Myunghwa Jun 1 Reputation point
2020-10-07T06:40:04.807+00:00

My some application can NOT be opened, and I found that it is related with .NET framework.

So, I was googling and I tried to reinstall .NET Framwork 3.5.

Then, I came across the '.NET Framework 3.5 installation errors : 0x800F0954' error.

Please, help me.

Windows Server
Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
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  1. Ilia Ershov 126 Reputation points
    2020-10-07T07:54:42.017+00:00

    Try to install component from source
    Add-WindowsCapability -Online -Name NetFx3~~~~ -Source D:\Sources\SxS

    1 person found this answer helpful.
  2. Carl Fan 6,836 Reputation points
    2020-10-07T09:27:49.24+00:00

    Hi,
    It means that you need to download a System image then using the command to install .NET Framework 3.5 from ISO.
    You could use dism command in CMD or Add-WindowsCapability command in Powershell.
    Check the information in the link below.
    https://thegeekpage.com/fix-installing-net-framework-3-5-failed-error-code-0x800f0954-on-windows-10/
    Hope this helps and please help to accept as Answer if the response is useful.
    Best Regards,
    Carl Fan

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  3. Bonolo Nokias 1 Reputation point
    2022-11-22T10:58:11.067+00:00

    Hi I added the windows 2019 iso , and ran the command "Add-WindowsCapability -Online -Name NetFx3~~~~ -Source D:\Sources\SxS" and it installed successfully

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