Steps to Fix Error 0x8004fc12 on Windows 11

This practical guide walks through steps to fix error 0x8004fc12 on Windows 11, explains the main requirements, and highlights common issues that may appear along the way.

1. Windows 11 and license activation

The Windows 11 operating system is completely free to upgrade from Windows 10 and this means you will not have to activate or purchase a license if you already use a copyrighted Windows 10. However, some platforms encounter an error, you will have to reactivate the license from the beginning. The reactivation of Windows 11 license is similar to Windows 10, you just need to perform the same operations as on Windows 10.

On some computers, Windows 11 activation encounters error 0x8004FC12 and they cannot use the full features. The generation of errors on Windows 11 has caused many problems for users. Especially those who need a stable operating system. Error code 0x8004FC12 arises because of the Windows host system and makes it impossible for the system to enter the Active Windows code.

2. Fix error 0x8004FC12 with TroubleShoot

TroubleShot is a debugging tool from Microsoft and they solve a lot of errors on the Windows operating system.

Step 1: Open the Start Menu (1) and select Settings (2) to open the settings on your Windows computer.

Step 2: Then, select the Update & Security tab to open the update and security feature.

Step 3: Next, select the Troubleshoot tab and select Additional troubleshooters to see the fixer on the computer.

Step 4: Find the Run the troubleshooter tab of the Windows Update section to fix error 0x8004FC12.

Step 5: You just need to wait for the system to handle the error and restart the computer when it's done. After a successful reboot, please re-enter the code to Active Windows 11.

3. Fix error 0x8004FC12 by turning off Firewall

The firewall on Windows 11 is also one of the main causes of not being able to Active Windows 11 on the computer.

Step 1: Open the Expand item on the Taskbar and select the Windows Defender item.

Step 2: Next, select the Firewall & network protection item to view the settings related to the firewall and network security.

Step 3: Then, select the Domain network / Private network / public network items in turn and turn off the Firewall feature.

Step 4: When you have finished turning off the firewall, proceed to reactivate Windows 11 according to the purchased key. Next, the error code 0x8004FC12 will be gone.

4. Fix error 0x8004FC12 with Command Prompt

Step 1: Press the Windows + R combination to open the RUN window and enter Cmd to open the Command Prompt.

Step 2: Then, enter the following commands in turn and press Enter to process.

net localgroup Administrators localservice /add

fsutil resource setautoreset true C:

netsh int ip reset resetlog.txt

After completing the above commands, please proceed to restart the computer and check the error code 0x8004FC12 to see if it still appears when Active Windows 11 or not.

In this article, Tipsmake has shown you how to fix error 0x8004FC12 when Active Windows 11 quickly and effectively. Have a nice day!