Realtek network controller was not found Windows 10

Introduction

This tutorial provides step-by-step instructions to resolve the issue of the "Realtek network controller was not found" on Windows 10, Windows 8, and Windows 7. This problem can prevent your computer from connecting to the internet, and by following these methods, you can restore your network functionality.

Step 1: Show Hidden Devices in Device Manager

1. Open Device Manager:
   • Right-click on the Start menu and select "Device Manager."
2. View hidden devices:
   • Click on the "View" menu at the top.
   • Select "Show hidden devices."
3. Check for Realtek Network Controller:
   • Expand the "Network adapters" section and look for any hidden Realtek network devices.
   • If found, right-click on the device and select "Enable" or "Update driver."

Step 2: Install Default Legacy Hardware

1. Open Device Manager:
   • Access Device Manager as explained in Step 1.
2. Add legacy hardware:
   • Click on "Action" in the menu bar.
   • Select "Add legacy hardware."
3. Follow the wizard:
   • Click "Next" and choose "Install the hardware that I manually select from a list (Advanced)."
4. Select Network Adapters:
   • Choose "Network adapters" and click "Next."
5. Choose Realtek:
   • From the list, find and select "Realtek" or the specific model of your network card.
   • Follow the prompts to install the driver.

Step 3: Repair Drivers

1. Open the Device Manager:
   • Access Device Manager as previously instructed.
2. Locate the Realtek device:
   • Find your Realtek network controller under "Network adapters."
3. Repair the driver:
   • Right-click on the device and select "Properties."
   • Go to the "Driver" tab and click on "Roll Back Driver" if the option is available. This reverts to the previous version of the driver.
   • If no rollback is available, select "Update Driver" and follow the on-screen instructions to search for updated drivers.

Step 4: Adjust Power Management Settings

1. Open Device Manager:
   • Access Device Manager again as detailed earlier.
2. Find the Realtek device:
   • Expand the "Network adapters" section to locate your Realtek device.
3. Modify power management:
   • Right-click on the Realtek network controller and choose "Properties."
   • Navigate to the "Power Management" tab.
   • Uncheck the box that says "Allow the computer to turn off this device to save power."
   • Click "OK" to apply the changes.

Conclusion

By following these steps, you should be able to resolve the issue of the Realtek network controller not being found on your system. Start with showing hidden devices and proceed through legacy hardware installation, driver repair, and adjusting power management settings. If problems persist, consider downloading the latest drivers from the Intel website. If you found this guide helpful, consider supporting the creator or checking their channel for more troubleshooting tips.