Fix: Windows Activation Error 0x803fa067 on Windows

Try these expert-tested methods to fix the problem

by Loredana Harsana
Loredana Harsana
Loredana Harsana
Managing Editor
Loredana is a passionate writer with a keen interest in PC software and technology. She started off writing about mobile phones back when Samsung Galaxy S II was... read more
Reviewed by Alex Serban
Alex Serban
Alex Serban
Windows Server & Networking Expert
After moving away from the corporate work-style, Alex has found rewards in a lifestyle of constant analysis, team coordination and pestering his colleagues. Holding an MCSA Windows Server... read more
Affiliate Disclosure
  • If you got this error while upgrading your computer, and the server doesn’t recognize the product key, chances are you have a bogus copy of Windows.
  • This guide will talk about the reasons behind the issue and potential fixes.
Windows Activation Error 0x803fa067 on Windows

To fix various PC problems, we recommend Restoro PC Repair Tool:
This software will repair common computer errors, protect you from file loss, malware, hardware failure and optimize your PC for maximum performance. Fix PC issues and remove viruses now in 3 easy steps:

  1. Download Restoro PC Repair Tool that comes with Patented Technologies (patent available here).
  2. Click Start Scan to find Windows issues that could be causing PC problems.
  3. Click Repair All to fix issues affecting your computer's security and performance
  • Restoro has been downloaded by 0 readers this month.

Sometimes when we try to upgrade our Windows computer to a higher version, we might get Windows Activation error 0x803fa067. Don’t worry; there are fixes. 

This guide will discuss the popular reasons for this activation error and all the available fixes. Let’s start!

What causes Windows Activation Error 0x803fa067?

  • Counterfeit license key – If you don’t have a valid license key, you might get an error. Using a genuine copy of Windows is advised to get a better user experience and security.
  • Recent Windows Update – If you have recently installed a Windows update, and your system files have been modified, you might face this issue.

What can I do to fix Windows Activation Error 0x803fa067?

1. Run Windows Activation Troubleshooter

Note: If you don’t get Troubleshoot option, move on to the following method.

  1. Press Windows + I to get Settings.
  2. Go to System, then click Activation.Activation
  3. Click Troubleshoot.
  4. Select the appropriate option and click Next.
  5. Enter your Microsoft credentials and click Sign in.
  6. Put a checkmark beside This is the device I’m using right now on the next screen.
  7. Click Activate.

2. Disconnect the PC from the internet and upgrade

  1. Press Windows + I to open Settings.
  2. Go to System, then click ActivationActivation
  3. Now under Upgrade your edition of Windows, go to the Change product key and click Change.
  4. Enter your product key and click Next.Change product key
  5. Press Windows + R to get the Run window.
  6. Type ncpa.cpl to open Network properties.NCPA run command
  7. Go to the active connection and click Disable.Network Properties
  8. Now start the upgrade.

3. Use Command Prompt

  1. Press the Windows key, type CMD and Run as administrator.CMD elevated
  2. Type in the following command and press Enter: slmgr /upk
  3. Now type in the command mentioned below by replacing XXXXX with your product key and press Enter: slmgr/ ipk xxxxxxxxxxxxxxxxxxxxxxxxCMD command

4. Activate Windows by phone

  1. Press Windows + R to get the Run window.
  2. Type slui 4 and hit Enter.
  3. On Select your country or region window, select your country.Activation by phone 1
  4. On the next page, you will get phone numbers; call on any of them to get your Confirmation ID.Activation by phone 2
  5. Now enter your Confirmation ID on the next page and click Activate Windows.Activation by phone 3

So, these are the methods you need to follow to fix Windows Activation Error 0x803fa067 on Windows. Try them, and let us know which one worked for you in the comments. 

If you don’t have a genuine copy of Windows, you need to purchase it from the Microsoft Store app.

Still having issues? Fix them with this tool:


If the advices above haven't solved your issue, your PC may experience deeper Windows problems. We recommend downloading this PC Repair tool (rated Great on to easily address them. After installation, simply click the Start Scan button and then press on Repair All.

This article covers:Topics: