How to Fix ‘This Copy of Windows Is Not Genuine’ Error

If you’re seeing the ‘This copy of Windows is not genuine’ message on your screen, it indicates that your Windows license is not being recognized as legitimate by Microsoft. This can happen for various reasons, such as activation issues, license expiration, or system modifications. Fixing this error not only removes the annoying message but also ensures your Windows operates with full functionality and security updates. Before starting, make sure your device is connected to the internet, as some solutions require online verification or activation. Additionally, it’s recommended to back up important data in case any troubleshooting steps affect your system.

What You’ll Need

• Administrator access to your Windows account
• Your Windows product key (if available)
• Internet connection
• Optional: Windows installation media or recovery drive

Step-by-Step

1. Verify Your Windows Activation Status
   Go to Settings > Update & Security > Activation. Check if Windows is activated or if there’s an error message. This gives you an idea of what troubleshooting steps to take.
2. Run the Activation Troubleshooter
   In the Activation settings, click on ‘Troubleshoot.’ Windows will attempt to detect and fix common activation issues automatically.
3. Re-enter Your Product Key
   If you have a valid product key, click on ‘Change product key’ in the Activation settings. Enter your key carefully and follow prompts to activate Windows again.
4. Use Command Prompt to Reactivate Windows
   Open Command Prompt as an administrator (search for CMD, right-click, select Run as administrator). Type the following commands one by one, pressing Enter after each:

   slmgr /upk
   slmgr /ipk YOUR-PRODUCT-KEY
   slmgr /ato

   Replace ‘YOUR-PRODUCT-KEY’ with your actual key. This resets and reactivates Windows.

5. Check System Date and Time
   Incorrect date and time settings can cause activation problems. Ensure your system clock is correct: Settings > Time & Language > Date & Time.
6. Use the Windows Activation Script
   Download and run the ‘slui.exe’ tool by typing ‘slui 4’ in the Run dialog (Win + R). Follow on-screen instructions to activate Windows via phone if online activation fails.
7. Update Windows
   Go to Settings > Update & Security > Windows Update and check for updates. Installing the latest updates can resolve bugs related to activation.
8. Reinstall Windows
   If all else fails, consider performing a clean installation of Windows. Use a recovery drive or installation media, and ensure you have your product key ready for activation afterward.

Common Mistakes

• Using an invalid or pirated product key, which can cause activation errors.
• Failing to run the activation troubleshooter before trying manual fixes.
• Modifying system files or registry entries without proper knowledge, risking further issues.
• Disconnecting from the internet during activation attempts, which can prevent online verification.
• Ignoring system date and time errors, leading to activation failures.

Tips

• Always keep a record of your product key in a safe place.
• Regularly update Windows to avoid bugs that affect activation.
• If you bought a new device, ensure Windows was properly activated during setup.
• Use genuine Microsoft tools and avoid third-party activation hacks.
• Contact Microsoft Support if you purchased a legitimate license but still face issues.

Troubleshooting

If the above steps don’t resolve the ‘This copy of Windows is not genuine’ error, consider the following:

• Check Your License Validity: Make sure your product key is genuine and not blocked or revoked by Microsoft.
• Run System File Checker: Open Command Prompt as administrator and run sfc /scannow. This scans and repairs corrupted system files that might interfere with activation.
• Perform a Windows Reset or Clean Install: As a last resort, reset Windows via Settings > Update & Security > Recovery, or perform a clean install using official media. Remember to activate after installation.
• Check for Hardware Changes: Significant hardware changes can cause activation issues. Use the Activation Troubleshooter to reset your license.
• Contact Microsoft Support: If your license is genuine and issues persist, reach out to Microsoft for assistance. They can verify your license and help activate Windows properly.

Frequently Asked Questions

1. Why does Windows say my copy is not genuine?

This message appears when Windows cannot verify your license as genuine, often due to activation problems, license expiration, or system modifications.

2. Can I fix this error without reinstalling Windows?

Yes, most issues can be resolved through troubleshooting steps like re-entering your product key, running activation troubleshooter, or fixing system date/time.

3. What should I do if my product key doesn’t work?

Verify the key is correct, ensure it’s for the right version of Windows, and check if it’s still valid. Contact Microsoft support if problems persist.

4. Is it safe to use third-party tools to activate Windows?

Using unofficial tools can pose security risks and violate Microsoft’s terms. It’s best to use genuine activation methods or contact support for help.

5. How do I tell if my Windows license is genuine?

Check your activation status in Settings > Update & Security > Activation. You should see a message indicating Windows is activated with a digital license or product key.

6. Will fixing this error affect my files?

Most troubleshooting steps, like re-entering your product key or running system scans, do not affect personal files. However, a clean install will erase data, so back up beforehand.

Related

• How to Fix the Werfault.exe Error in Windows 10
• How to Fix the Your Input Can’t Be Opened VLC Error on Windows
• How to Fix the You Must Be Logged in to Steam Error in Batman Arkham Asylum