How to Activate Windows 10 Using a Genuine Product Key – Step-by-Step Guide

✅ Why Activating Windows 10 Matters

Windows 10 is one of the most popular operating systems, but using it without activation limits many features and security updates. By activating Windows 10 with a genuine product key, you gain:

• Access to personalization settings
• Security and feature updates
• A fully legal and verified copy of Windows
• Peace of mind from avoiding pirated software

🔑 Where to Get a Genuine Windows 10 Product Key

You can purchase a genuine Windows 10 Pro or Home product key from trusted online sources like TrustedKeys.in. We offer:

• ✅ Instant delivery via email
• ✅ Affordable pricing
• ✅ Support for activation issues
• ✅ Safe and secure payments via PhonePe, UPI, and more.

🛠️ Step-by-Step Guide to Activate Windows 10

Step 1: Open Activation Settings

• Click on Start > Settings > Update & Security > Activation

Step 2: Enter Your Product Key

• If you’re not activated yet, click “Change product key.”
• Enter the 25-character product key you received

Step 3: Click Activate

• Windows will verify the key with Microsoft’s servers.
• Once verified, your copy of Windows 10 will be activated.

🔄 Optional Method: Activation via CMD

For advanced users:

1. Press Windows + X, select Command Prompt (Admin)
2. Enter the command:
   slmgr.vbs /ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX
3. Then run:
   slmgr.vbs /ato
   This method also activates your key using Microsoft’s servers.

💡 Troubleshooting Common Issues

Error: 0xC004C003 – This usually means the key is invalid or already used. Make sure you’re using a new key from a trusted seller like us.
No Internet? – Activation needs an internet connection. Connect and try again.
Wrong Edition? – Check if your key is for Windows 10 Home or Pro, and matches your installed version.

Activating Windows 10 ensures that you’re using a legal, secure, and fully functional version of the OS. Buying from a reliable source like TrustedKeys.in guarantees instant delivery, genuine keys, and peace of mind.

If you’re ready to activate your Windows now, check out our latest offers:
👉 Buy Windows 10 Key Now