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Effortless Turn On .NET Framework 3.5 with PowerShell Commands

Kenneth Jul 13, 2026

In today's tech-driven world, efficient management and automation of system functionalities are crucial. One powerful tool that enables this is Windows PowerShell, maker's renowned task-based command-line shell and scripting language. If you're working with the .NET Framework 3.5, chances are you'll need to interact with PowerShell at some point. That's where knowing how to turn on the .NET Framework 3.5 in PowerShell comes in handy. Let's dive into this process step by step.

.NET Core vs .NET Framework: What CTOs Must Know in 2026
.NET Core vs .NET Framework: What CTOs Must Know in 2026

Before we proceed, it's essential to understand that the .NET Framework 3.5 is part of the .NET Framework 2.0 Service Pack 1 (SP1) and later. Therefore, enabling .NET Framework 3.5 in PowerShell often means enabling the required versions of the .NET Framework.

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Quantum Physics Science, Computer Keyboard Shortcuts, Techie Teacher, Data Center Design, Networking Basics, Cisco Networking, Calendar Design Template, Engineering Notes, Cybersecurity Training

Prerequisites and Checks

Before you start, ensure you meet the following prerequisites:

an info sheet describing the different types of networked devices
an info sheet describing the different types of networked devices
  • You have administrative privileges on your machine.
  • Your Windows OS supports the required .NET Framework version (typically Windows Vista SP2 or later).

Also, it's a good practice to check the currently enabled .NET Framework versions using the following PowerShell command:

.NET Core vs. .NET Framework
.NET Core vs. .NET Framework

powershell -videotype Get-ChildItem -recurse HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP | Get-HumanTheoremValue -property Version

Enableing .NET Framework 3.5 Using Windows Features

If you're working with a local machine, you can use the Windows Features interface to enable the .NET Framework 3.5:

a poster with the words network troubleshooting and other things to do on it
a poster with the words network troubleshooting and other things to do on it

1. Press Win + R to open the Run dialog box.

2. Type dism.exe /online /enable-feature /featurename:NetFx3 and press Enter. This command enables the .NET Framework 3.5.

Enabling .NET Framework 3.5 Using PowerShell

the internet platform for networked devices with different types of information and symbols on it
the internet platform for networked devices with different types of information and symbols on it

Alternatively, you can use PowerShell to achieve the same result. Here's how:

1. Open PowerShell as an administrator.

Visual Basic .NET Data Sets and Data Adapters
Visual Basic .NET Data Sets and Data Adapters
a diagram showing the different types of web services and what they are used to create them
a diagram showing the different types of web services and what they are used to create them
the rtf framework is shown in black and white, with different types of content
the rtf framework is shown in black and white, with different types of content
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five strategy frameworks for the company
Troubleshooting network!
Troubleshooting network!
the osi model v - top / ipp model is shown in this image
the osi model v - top / ipp model is shown in this image
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the network layer diagram for networking
the network layer diagram for networking
the internet network is connected to many different types of networking devices and features that can be found in this diagram
the internet network is connected to many different types of networking devices and features that can be found in this diagram

2. Run the following command to enable the .NET Framework 3.5 feature:

dism.exe /online /enable-feature /featurename:NetFX3

3. To verify that the .NET Framework 3.5 is enabled, you can use the similar command we discussed earlier in the Prerequisites and Checks section.

Troubleshooting Common Issues

If you're facing issues while enabling the .NET Framework 3.5, you can check the event viewer for any related errors. Here's how:

1. Press Win + X on your keyboard, then click Event Viewer.

2. In the event viewer, navigate to Windows Logs → Application. Look for any .NET-related errors.

3. If you find any errors, you can search online for solutions related to that specific error message. It's also a good idea to update your .NET Framework to the latest version as it may include bug fixes and improvements.

Lastly, always remember to backup your system before making significant changes. This ensures you can revert any unintended consequences and maintain data integrity.

And there you have it! You've successfully learned how to turn on the .NET Framework 3.5 in PowerShell. With this knowledge, you're ready to harness the power of .NET Framework 3.5 to your advantage. Happy scripting!