How to Fix Activation “Error Code: 0x87e107f9”? on Windows 10/11?

The error code 0x87e107f9 typically appears when attempting to launch digital games on Xbox, suddenly blocking access to purchased titles. The code refers to a license validation failure, meaning the console cannot verify game ownership via Microsoft’s servers.

The most common cause is an Xbox Live service disruption, though local network issues or account authentication problems may also trigger it. Now that you know the causes, let’s discuss the solutions.

1. Use the Windows Activation Troubleshooter

If you’ve made major hardware changes (like replacing your motherboard) or reinstalled Windows, the built-in Activation Troubleshooter can help reactivate Windows 11 or 10. Make sure you’re signed in as an administrator to use this tool.

1. Press Win + I to open Settings.
2. Go to “System,” then select “Activation” from the right side.
3. In the Activation Status section, click the Troubleshoot button.
4. Wait for the tool to run. It will connect to Microsoft’s servers to find and diagnose the issue.

   

2. Try Activating Windows Again Using Your Product Key

If you still have your product key, you can try using it again to activate Windows 11. This method will work as long as you haven’t changed significant hardware, like the hard drive or motherboard. Follow these steps:

1. Press Win + X and choose Settings.
2. Go to System, then select Activation.
3. Click the Change button next to ‘Change product key’ in the Activation Status column.
4. Enter your 25-character product key, then click “Next”.
5. Windows will verify that your product key is valid.

If the product key is correct and valid, your PC will be activated right away. If your product key doesn’t work, or you recently changed your hard drive or motherboard, this method may not succeed—a digital license linked to your Microsoft account might help. In that case, log in to your Microsoft account and wait a few hours. Windows will check for any digital licenses tied to your account and try to activate your PC automatically.

If you need help changing your Windows 10 product key, visit How to Change Your Windows 10 Product Key

2.1. Use Command Prompt to Activate Windows

1. Make a note of your MAK (Multiple Activation Key) key.
2. Press the Windows key and type cmd in the search bar.
3. Right-click Command Prompt and select ‘Run as administrator’.
4. Type slmgr.vbs -ipk <your MAK key> and press Enter.
5. Wait for the setup to complete.
6. Next, type slmgr.vbs -ato and press Enter to activate.
7. Close the Command Prompt and restart your computer.

   

2.2. Activate Windows by Phone

You can also activate Windows by phone by contacting Microsoft Support. Here’s how:

1. Press Win + R, type cmd, then press Ctrl + Shift + Enter to run as administrator.
2. Click “Yes” if prompted by User Account Control (UAC).
3. Type slui.exe 4 in the Command Prompt and press Enter.
4. Choose your country or region and call the displayed toll-free number.

   

5. Follow the prompts and enter your installation ID when asked.
6. Listen to the automated system and enter the confirmation ID it provides you.

   

7. After you click “Activate Windows,” your device should be successfully activated over the phone.

4. Run Microsoft Support and Recovery Assistant

Users on Windows 11/10 can use the Microsoft Support & Recovery Assistant to automatically find and fix activation issues. Since this tool is official from Microsoft, you don’t need to worry about its safety. Here’s how to download, install, and use it:

1. Visit the official Microsoft website to download the Support & Recovery Assistant tool.
2. Run the installer after it downloads.
3. Double-click the downloaded file and follow the prompts to install the program.
4. When asked, select Windows as the product and click Next.Microsoft Support and Recovery Assistant
5. Check the box for “I installed Windows but cannot activate it,” then click “Next.”
6. Let the tool scan for problems and apply any fixes it suggests.
7. Restart your PC after the activation error 0x87e107f9 is resolved.

If none of these methods solve the Windows activation error 0x87e107f9, there might be a serious problem with your license or an issue with Microsoft’s activation servers, especially after major hardware changes like swapping your motherboard. Windows licenses are usually linked to your hardware, so changes can affect activation.

If you’re still stuck, a Microsoft support agent can help find the cause and may be able to solve the issue remotely. Visit the official Microsoft support website to get in touch with their team for further assistance.