Steps to Fix Windows 10 Activation Error Code 0xC004F034, 0x803F7001 and 0x800704CF



Overview: We have come across a situation when the system is just out of the box and it gives you an error “We can’t activate Windows on this device because you don’t have a valid digital license or product key. Go to the store to buy genuine Windows. Error code 0xC004F034/0x803F7001 or 0x800704CF”. You may receive any one of the mentioned error codes or different error code.  This happens because of the busy Microsoft activation servers. Do not worry about this, as long as you have paid for the Windows we will not find any problem activating it.

So, let’s start with the real user’s practical scenarios!

Practical Scenario 1

12-16-2017 08:59 AM Windows 10 no longer activated My windows product key says it is no longer activated on my XPS15. This may have happened from when I updated my BIOS or when I did a system restore. I did some research and found that the windows product key is injected into the BIOS. How can get windows 10 activated again on my laptop? Any help would be much appreciated. Thank you!

Source: Dell Community

Practical Scenario 2

12-16-2017 12:09 PM Windows 10 no longer activated This has been an issue for a few weeks now and I have been online during that whole time.  The exact message is: “We can’t activate Windows on this device right now.  You can try activating again later or go to the Store to buy genuine Windows. Error code: 0xC004F034”

Source: Dell Community

Just like the above two users, there are many Windows users who are facing this issue. Let’s follow the below steps to fix the activation issue.

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Solution 1: Use Windows Activation Troubleshooter

Open Windows 10 Settings by pressing Windows + I key together on the keyboard or go to the Windows Start button and click on setting icon shown below:

Once Windows Settings is open click on Update & Security


Now select Activation option and then click on Troubleshoot

Activation troubleshooter

This will activate the Windows 10 on your system.

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Solution 2: Use Telephone Activation

Open Run Box by pressing Windows + R key on the keyboard or simply type run on the windows search box on the bottom left of your screen. Once Run box is open type SLUI 4 in the run box and hit OK as shown below:


Select your region and then click Next


On the Next screen, you will find the Toll-free number to call Microsoft and Installation ID. Call that Toll-free number and follow the automated instructions and, when prompted, provide the 63-digit Installation ID. Pic showed below


Once you are done dialing the installation ID then click on Enter the Confirmation ID. The Confirmation ID will be provided by the phone activation system, enter the Confirmation ID provided by phone activating system and then click Activate Windows as shown below:


This will activate the Windows on your system.

Also Read: Fix Slow Wi-Fi issue

Additional Reasons When You Might Face Windows 10 Activation Error

Reasons and Solutions Mentioned Below:

When You Install Windows 10 on Your PC For The First Time

In this case, you have to enter a valid 25-digit Windows 10 License key or purchase a Windows 10 license to activate it. To buy Windows 10 select the options mentioned below and then click on Go to the Store.


In the Microsoft store, follow the guidelines to buy Windows 10. 

When You Have Changed the Hardware on Windows 10 PC

Windows 10 product key is associated with the hardware of your PC. So, if you install any new potential hardware especially motherboard then you would need a new product key to activate Windows. To purchase a new Windows license, To buy Windows 10 select the options shown below and then click on Go to the Store.


In case you already have Windows license key you used on your PC before the hardware change, so in order to activate it, navigate to the location shown below:


Now Change product key.

Reinstalled Wrong Edition of Windows 10

When you reinstalled the wrong edition of Windows 10  then you may receive a Windows activation error code.

In order to correct this, navigate to the location shown below:


Click on Troubleshoot. The troubleshooter will let you know how to install the correct edition of Windows 10.

In case you have Windows 10 Pro which is provided by a company, we recommend that you get in touch with your organization’s support for assistance with the activation or get in touch with Microsoft.

Wrap Up

I hope this post helped you to learn the cause of Windows 10 activation error code and provide you different steps to activate your Windows on your PC.

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