Congratulations on purchasing a Windows 11 retail key! Whether you’ve built a new PC or reinstalled Windows, activating your key is the final step toward a fully functional OS.
This step-by-step guide covers online activation as well as telephone activation for users who face issues or don’t have stable internet.
🔑 What is a Windows 11 Retail Key?
A retail key is a legitimate Microsoft license, ideal for:
- Custom-built PCs
- System upgrades
- Reinstallations
- Bulk activations for resellers
You can buy a secure, genuine key at keys-shop.in.
🛠️ Step-by-Step Guide to Activate Windows 11 Key
🔹 Method 1: Online Activation (Recommended)
- Open Settings
- Go to Start > Settings > System > Activation
- Change Product Key
- Click “Change product key”
- Enter Your Key
- Input your 25-character key and click Next > Activate
- Done!
- You’ll see: “Windows is activated with a digital license”
🔹 Method 2: Telephone Activation (Alternative Method)
If online activation doesn’t work or you have limited internet access, use this official Microsoft-supported method.
🔸 Steps:
- Run Command Box
- Press
Win + R
, typeslui 4
, and press Enter
- Press
- Select Country/Region
- Choose India or your current location
- Call Microsoft Support
- Dial the toll-free number shown on your screen
- You’ll hear an automated voice system
- Enter Installation ID
- The system will ask you to enter your Installation ID (displayed on-screen)
- Get Confirmation ID
- After verification, you’ll be given a Confirmation ID
- Enter Confirmation ID
- Type it into the provided fields to complete activation
- Success Message
- Windows 11 should now show “Activated via telephone.”

⚠️ Common Activation Issues & Fixes
Problem | Solution |
---|---|
Typo in Key | Recheck and enter it carefully |
Key Already Used | Ensure it’s used on only one device |
Activation Error | Restart and try again with internet connection |
Time/Date Incorrect | Update it via Settings > Time & Language |
💡 Pro Tips
Save a backup of your key digitally or on paper
Always buy from authorized sellers like keys-shop.in
Make sure your Windows edition (Home, Pro) matches the key
🛒 Need a Genuine Retail Key?
Visit keys-shop.in to buy Windows 11 Retail Keys with:
- email delivery
- Global support
- Affordable prices