Dec 6, 2025 · The error code 0xC004C008 indicates that the activation server determined that the specified product key could not be used, often because it has already been activated on another device.

Oct 4, 2023 · Getting the Windows 10 Activation Error Code 0xC004C008? Check our fix guide and follow our solutions in order to solve the error.

Mar 26, 2025 · The Windows activation error code 0xC004C008 occurs when the activation server identifies your product key as already used on another device or when the key has reached its …

Jun 27, 2024 · Did you recently encounter Windows Activation Error Code 0xC004C008 on your computer screen? If so, then this post will help you to fix this issue.

Jul 24, 2025 · Several solutions are available. The Windows error 0xC004C008 usually occurs when hardware has been changed, the product key has been transferred to a new PC, or has been …

Jul 17, 2025 · Follow the guidelines provided in this article to resolve a Windows 10 Activation Error Code 0xC004C008 (Product key already in use) on system activation out of the box (OOB).

In This Video, I Will Show How To Fix Activation Error Code 0xC004C008 On Windows 10 & 11 ...more

Dec 21, 2023 · Fortunately, there are several effective ways to resolve the activation error 0xC004C008 in Windows 10/11, which we’ll discuss in this article. Before trying any hacks, we recommend …

Aug 13, 2023 · As per the error that you've received, it means the license have been used to other device already. You may try the retailer or the seller of your key regarding this.

Feb 12, 2024 · When you get this error, this implies that the product key you are using is being used to activate more devices than the Microsoft software license term allows. However, if you want to …