Where is .NET Framework 3.5 installation files folder?

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• MS has following possible solution for this

  Error code 0x800F0922:  (From:

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

  "The following error message occurs when you do Windows 10 upgrade:

  0x800F0922 CBS_E_INSTALLERS_FAILED: Processing advanced installers and generic commands failed.

  Note This error code is not specific to .NET Framework.

  To fix this issue, follow these steps:

  1. Open the .NET Framework installation files folder.
     • Open Sources folder
     • Right-click the SXS folder, and then click Properties.
     • Click Security and make sure that there is a check mark next to Read & Execute. If the check mark isnt there, click the Edit button and turn it on.
     • Press Windows Key + X
     • Click Command Prompt (Admin)
       
     • In the Command Prompt window, type the following command and press Enter:

       dism /online /enable-feature /featurename:netfx3 /all /source:c:\sxs /limitaccess

  2. In the Command Prompt window, type the following command and press Enter:

     dism /online /Cleanup-Image /RestoreHealth"

  But the instructions do not state where to find that folder.

  Where is the .NET Framework installation files folder so I can check that?

  • Edited by Sunday, June 30, 2019 8:40 PM

How to check what versions of .NET you have on your computer:

There are many ways to check what version of .NET (DOTNET) you have installed on your computer. Here are a few common methods.

Check for .NET in the File System

You can check your installed versions of .NET by navigating to Microsoft.NET\Framework under your Windows folders.  The complete path is usually 'C:\Windows\Microsoft.NET\Framework.  Each of the installed .NET versions will have its own folder.

Look in the Registry for .NET Installs

You can also check which versions of .NET are installed by looking in your registry in the following locations:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework
                     or
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP (better)

Check your registry with the following steps:

1. Click on your Microsoft Start button
   
   
   enter "regedit"
   
   
   and press enter.
2. If you are using Windows 7, you will probably run in to the message, "Do you want to allow the following program to make changes to this computer?" Click the [Yes] button to open the Registry Editor, even though you are not going to edit anything.
3. Navigate to one of the two registry locations listed above.

The following is a picture of the first registry location on my computer.

This next picture shows the second location. Note that this location shows more detail? That's why I prefer it.

Installed Programs

Although apparently not as detailed as checking the NET Framework Setup in the registry, you can also see which versions of .NET are installed by checking your list of installed programs.  Go to your computer Control Panel and select 'Add or Remove Programs'. If you are using Windows 7, you may just need to click the 'Uninstall a program' link instead. Don't worry, you're not going to uninstall anything.

Here is what it looks like in Windows 7. Note that I can still see a bit more detail in the file system (first method) or the NET Framework Setup in the system registry?

Compatibility: Windows 7 (any version), Windows Vista (any version), Windows XP Professional, or Windows XP Home Edition (no other XP versions)

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