How to Fix Windows 10 .NET Framework 3.5 Error Code 0x800f0954

Key Notes

  • Utilize PowerShell commands to install. NET Framework 3.5.
  • Edit registry settings to bypass WSUS if necessary.
  • Adjust Group Policy settings to enhance Windows Update access.

How to Resolve. NET Framework 3.5 Error Code 0x800f0954 in Windows 10

Encountering error code 0x800f0954 while attempting to install. NET Framework 3.5 on Windows 10 can be frustrating. This guide offers actionable solutions to help you fix the issue effectively.

Understanding. NET Framework 3.5 Error Code 0x800f0954

To resolve error code 0x800f0954, follow the instructions below:

Step 1: Install. NET Framework Via PowerShell

Many users have successfully resolved the. NET Framework 3.5 Error Code 0x800f0954 by executing a specific PowerShell command. Here’s how to perform the installation:

  • Download the latest Windows 10 ISO using the Media Creation Tool.
  • After the download, mount the ISO file by double-clicking on it.
  • Note the drive letter assigned to your mounted drive.
  • Launch PowerShell as an administrator.
  • In the PowerShell window, type the following command and hit enter:

Add-WindowsCapability –Online -Name NetFx3~~~~ -Source D:\sources\sxs

  • Once the command executes, verify the. NET Framework is installed with:

Get-WindowsCapability -Online -Name NetFx3~~~~

  • Close PowerShell and restart your computer.
  • Check if the error code reoccurs after rebooting.

Step 2: Bypass WSUS Server to Resolve Error 0x800f0954

If the error appears when installing Windows features, your system might lack access to the Windows Update server. Follow these steps to resolve this issue:

  • Press Windows + S and type Regedit in the search box.
  • From the search results, select Registry Editor.
  • When prompted by UAC, select Yes to continue.
  • Navigate to:

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU

  • In the right pane, double-click UseWUServer and set its Value data to 0.
  • Select OK and close the Registry Editor.
  • Restart your computer to see if the problem is resolved.

Pro Tip: If the UseWUServer entry does not exist, create it using the keys outlined below:

  1. Right-click on the Windows key, select New > Key, and name it WindowsUpdate.
  2. Right-click on WindowsUpdate, select New > Key, and name it AU.
  3. Select AU and create a new String Value named UserWUServer.

Step 3: Using Group Policy Editor

For those still facing issues, utilizing the local Group Policy Editor might help. Note that this feature is not available in all versions of Windows, particularly the Home edition. For Pro or Enterprise users:

  • Right-click the Start button and select Run.
  • Enter gpedit.msc and press enter.
  • In the Local Group Policy Editor, navigate to:

Computer Configuration\Administrative Templates\System

  • In the right pane, double-click Specify settings for optional component installation and component repair.
  • Set to Enabled to activate the options.
  • Check the box next to Download repair content and optional features directly from Windows Update instead of WSUS.

Confirm the changes by clicking Apply, and then restart your system to check if the issue persists.

Step 4: How to Force Install. NET Framework 3.5

If you are still unable to install. NET Framework 3.5, consider using a forced installation:

  • Press the Windows key and type Windows Features.
  • When you locate it in the results, click on it.
  • Find .NET Framework 3.5 (includes. NET 2.0 and 3.0), and check both boxes beneath it.
  • Click OK to save the settings and restart your computer.

Additional Tips

  • Verify the installation path in PowerShell for any missing components.
  • Ensure your internet connection is stable while performing installations.
  • Regularly check for Windows Updates for optimal system performance.

Summary

This guide outlined efficient methods to solve the. NET Framework 3.5 error code 0x800f0954 on Windows 10, utilizing PowerShell, Registry Editor, and Group Policy settings. By following these steps, you should be able to install the desired framework without any issues.

Conclusion

Addressing the. NET Framework 3.5 installation issues can be daunting, but the provided solutions should help you navigate and resolve the error code 0x800f0954 seamlessly. If the problem persists after following these steps, consider reaching out to Microsoft support for further assistance.

FAQ (Frequently Asked Questions)

What causes error code 0x800f0954?

Error code 0x800f0954 often occurs due to issues with Windows Update access, incorrect registry settings, or misconfigured Group Policy settings.

How can I manually install. NET Framework 3.5?

You can manually install. NET Framework 3.5 through the Windows Features dialog or by using PowerShell with a specific command targeting a mounted ISO source.