Install .NET 3.5 on Windows 10 Home from ISO file

I'm helping a colleague install a program written for XP and Windows 7. It fails to run on Windows 10. No error message, when you start it nothing happens. Setting it to run in compatibility with Windows 7 doesn't work either.

The developer page says it needs .NET 3.5 to run. So I go to enable .NET 3.5 in the control panel under Programs, Turn on Windows features, that attempts to download files but it fails with error 800F081F.

The help page (link below) for that error says I should download an ISO of Windows 10, which I did. Now I can't figure out how to use it. The help page describes running the Group Policy editor, but that does not appear in Windows 10 Home. How does one install .NET 3.5 on Windows 10 Home?

https://support.microsoft.com/en-us/help/2734782/net-framework-3-5-installation-error-0x800f0906-0x800f081f-0x800f0907

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Answer

Andre Da Costa

Volunteer Moderator

Open Notepad, then copy and paste the following information into it:

@echo off
Title .NET Framework 3.5 Offline Installer
for %%I in (D E F G H I J K L M N O P Q R S T U V W X Y Z) do if exist "%%I:\\sources\install.wim" set setupdrv=%%I
if defined setupdrv (
echo Found drive %setupdrv%
echo Installing .NET Framework 3.5...
Dism /online /enable-feature /featurename:NetFX3 /All /Source:%setupdrv%:\sources\sxs /LimitAccess
echo.
echo .NET Framework 3.5 should be installed
echo.
) else (
echo No installation media found!
echo Insert DVD or USB flash drive and run this file once again.
echo.
)
pause

Save the file as framework.cmd

Right click it and choose Run as administrator.

The file will install .NET Framework 3.5 automatically after finding the drive letter of your Windows 10 installation media.

If media not found insert Win10 Usb or Dvd drive and run as administrator again.

Best,
Andre
twitter/adacosta
groovypost.com

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Answer

Kapil Arya MVP

Hello,

Try enabling .NET 3.5 via this way:

https://www.kapilarya.com/how-to-enable-net-fra...

Let us know if this helps!

---------------------------------------------------------------------------------------

Microsoft MVP (Windows IT Pro), since 2014 · Windows Insider MVP, since 2016 · Windows Help (www.kapilarya.com)

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