Error 0x87E10BC6 indicates that Windows is unable to contact the Microsoft activation servers. Here are some steps to troubleshoot and resolve the issue:
1. Check Internet Connection
- Ensure your device is connected to the internet.
- Try opening a website to verify connectivity.
- If using a proxy or VPN, disable it temporarily and try activating again.
2. Run Windows Activation Troubleshooter
- Open Settings (
Win + I
). - Go to System > Activation.
- Click Troubleshoot and follow the instructions.
3. Manually Activate via Command Prompt
Try activating Windows using the command line:
- Open Command Prompt as Administrator (
Win + R
→cmd
→Ctrl + Shift + Enter
). - Run the following command to force activation:
slmgr /ato
- If that doesn’t work, try re-entering your product key:
slmgr /ipk YOUR-PRODUCT-KEY
- Then activate again:
slmgr /ato
4. Check Date & Time Settings
- Incorrect system time can interfere with activation.
- Go to Settings > Time & Language > Date & Time and enable Set time automatically.