Error 0xC004C003 occurs when a licensing code component tries to access a registry hive without proper access. A resulting access denied error causes the product key not to be extracted correctly.
How do I fix error code 0xC004C003?
Error 0xC004C003 rules occur when trying to activate an operating system that often uses an OEM Activation 3.0 digital product key. For more information about the specific error, see: KB5001692: Windows activation fails with error 0xc004c003. The problem can be solved by updating Windows to a higher version.
How do I permanently activate my Windows 8.1 for free?
Click the Start button, type PC Settings, and this time select PC Settings from the results contact list.
Select Activate Windows.
Enter someone else’s Windows 8.1 product key, select Next, and follow the prompts.
How do I fix Windows 8.1 not activated?
Open the top command prompt by moving your computer to the bottom left side of the screen. Press
on the right and enter command prompt (admin).
Enter slmgr.
Your Windows 8 is probably activating now.
How do you fix Windows cant activate try again later?
Select Start > Settings > Update & Security > Activation and/or select Troubleshoot to launch the activation troubleshooter. For more troubleshooting I would say, see Using the Activation Troubleshooter.
How do I fix error code 0xC004C003?
How and Fix Error Code: 0xc004c003 in Windows 10/7
- Method 1: Try restarting your computer/laptop.
- Method 2: Use the command line
- Method 4: Try installing Windows 7/8 and then update . Figure 4:
- The cleanup method boots the computer.
- Method 10: Performing an SFC.6 scan:
- Ping method Boot over the network with Microsoft servers.
- Method li>
What is error code 0xc004c003?
Microsoft Error Code 0xc004c003 – This error can appear when activation servers are busy. If it’s easy, wait a few hours and try starting Windows 10 again. 0xc004c003 Windows 10 activation error – Sometimes this error can appear if you haven’t upgraded to Windows 10 properly.

Ermias is a tech writer with a passion for helping people solve Windows problems. He loves to write and share his knowledge with others in the hope that they can benefit from it. He’s been writing about technology and software since he was in college, and has been an avid Microsoft fan ever since he first used Windows 95.