Software⏱️ 4 min read📅 2026-06-15

How to Fix: Error when trying to activate Hyper-V feature, assembly not found

Error activating Hyper-V feature in Windows 10 Enterprise LTSB

Quick Answer: Run the command with administrator privileges and try again.

📋 Table of Contents

  1. 🔍 Why This Happens
  2. 🔧 Proven Troubleshooting Steps
  3. 🎯 Final Words

The 'Error when trying to activate Hyper-V feature, assembly not found' issue affects users who are trying to install Docker or other virtualization-based applications on their Windows 10 Enterprise LTSB system. This error is frustrating because it prevents users from utilizing the full potential of their computer's hardware. Fortunately, this guide will walk you through the steps to resolve this problem.

Resolving this error requires a combination of troubleshooting and technical expertise. In this guide, we will explore the root causes of this issue and provide two primary methods for fixing the 'assembly not found' error when trying to activate Hyper-V feature.

🔍 Why This Happens

  • The primary reason why this error occurs is due to a missing or corrupted assembly file required by the Hyper-V feature. This file is usually located in the Windows installation directory, but its presence can be affected by various factors such as system updates, driver conflicts, or incorrect registry settings.
  • Another alternative reason for this error could be related to the version of Windows 10 Enterprise LTSB being used. In some cases, certain features like Hyper-V may not be enabled by default in older versions of Windows 10, which can lead to the 'assembly not found' error.

🔧 Proven Troubleshooting Steps

Enabling Hyper-V using the Windows Features GUI

  1. Step 1: Step 1: Open the Control Panel on your Windows 10 Enterprise LTSB system.
  2. Step 2: Step 2: Click on the 'Programs and Features' option in the Control Panel.
  3. Step 3: Step 3: In the Programs and Features window, click on the 'Turn Windows features on or off' link on the left side.
  4. Step 4: Step 4: Scroll down to the 'Hyper-V' section and check the box next to it to enable the feature.
  5. Step 5: Step 5: Click 'OK' to save your changes.
  6. Step 6: Step 6: Restart your system to ensure that the Hyper-V feature is enabled correctly.

Enabling Hyper-V using PowerShell

  1. Step 1: Step 1: Open PowerShell as an administrator on your Windows 10 Enterprise LTSB system.
  2. Step 2: Step 2: Run the following command to enable the Hyper-V feature: `Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Hyper-V`
  3. Step 3: Step 3: Wait for the command to complete and restart your system to ensure that the Hyper-V feature is enabled correctly.

🎯 Final Words

To resolve the 'assembly not found' error when trying to activate the Hyper-V feature, you can follow either of the two methods outlined in this guide. If you are unable to enable the Hyper-V feature using the Windows Features GUI or PowerShell, it may be necessary to seek further assistance from a technical support specialist or perform additional troubleshooting steps.

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