Fix Windows Upgrade or Activation error 0xc03f6506

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Many habitation users tend to get a computer that comes installed with Windows 11/10 Home. Since Windows eleven/10 Pro offers fifty-fifty more features and utilities than Windows eleven/10 Home, many prefer to upgrade Windows 10 Home to Windows 10 Pro. But while doing this, some people may see error0xc03f6506.

This 0xc03f6506 error ordinarily occurs when you proceed to actuate Windows 11/10.

The last production key you entered tin can't be used on this copy of Windows (0xc03f6506).

But it can also appear during the Upgrade process itself.

Unable to upgrade your edition, Nosotros tin can't upgrade your edition of Windows. Endeavour upgrading your edition of Windows again. (0xc03f6506).

Today we will be checking out how to overcome this error in both the scenarios and get the affected reckoner to Windows 10 Pro.

Set up Activation Error Code 0xc03f6506 for Windows 11/10

We will be taking a look at the post-obit fixes to get rid of error0xc03f6506 for Activation upon changing the edition of Windows 11/10,

Use Registry Editor.
Use the Control Prompt.
Disable Network Adapter.

ane] Apply Registry Editor

If you lot have upgraded to Windows ten Pro and have trouble in its Activation, you lot can utilise the Registry Editor to assistance you.

Hitting the WINKEY + R button combination to launch the Run utility, type inregedit and hitting Enter. Once Registry Editor opens, navigate to the following key-

Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion

Now, check if y'all find a DWORD named asEditionID .

Double-click on it and change its Value data toWindows 10 Professional.

Also, check if you find a DWORD named equallyProductName .

Double-click on information technology and modify its Value data toWindows 10 Professional.

Reboot your figurer for the changes to take effect.

2] Use the Command Prompt

This fix can be used in both the scenarios mentioned above.

Insert a bootable drive of Windows x installer.

Start by hit theWINKEY + Tencombinations and selectCommand Prompt (Admin)to launch Command Prompt with Ambassador Privileges.

Navigate to the root location of that bootable device inside the Command Prompt command line.

Once you get there, type the following and hit Enter-

setup.exe /auto upgrade /pkey <YOUR WINDOWS 10 PRO EDITION Production Cardinal>

Check if that helps you.

Read: Upgrade using default Windows x Pro primal.

3] Disable Network Adapter

Just similar the method of using the Command Prompt command line, this gear up can also exist used in both the scenarios mentioned above.

Get-go by hitting theWINKEY + Xbutton combinations and click onNetwork Connections.

Information technology will open the Settings app on a specific page. On the left side console, click on the link that saysChange adapter settings.

Information technology will open up the Control Panel. On the right side, click on the network that y'all are connected to.

Correct-click on the Network Adapter that you have been using, and select Disable.

Once information technology disables your Network Adapter, endeavour switching the edition of your re-create of Windows 10 again.

Check if that fixes your issues.

Do remember to double click on the disabled Network Adapter to go dorsum on the Network.

Hope something helps!

Ayush has been a Windows enthusiast since the twenty-four hours he got his outset PC with Windows 98SE. He is an active Windows Insider since Twenty-four hours i and is at present a Windows Insider MVP. He has been testing pre-release services on his Windows ten PC, Lumia, and Android devices.