🎯 Use this method if online activation doesn’t work or if you have a key requiring phone validation.


✅ Prerequisites:

  • Have Windows 11 installed on your PC

  • Have your 25-character product key

  • Have a phone (landline or mobile)


🔹 Step 1: Open the Activation Window

  1. Press Windows + R to open the Run dialog box

  2. Type: slui 4

  3. Press Enter

📌 The command slui 4 allows direct access to the phone activation menu, even if the option does not appear automatically.


🌍 Step 2: Select your Country

  1. A new window will open with a list of countries

  2. Choose your country or region (e.g., France, Belgium, Canada…)

  3. Click Next

  4. A Microsoft phone number will appear on the screen


☎️ Step 3: Call Microsoft

  1. Call the displayed number from a phone

  2. An automated system will ask you to enter an Installation ID (9 blocks of numbers displayed on the screen)

  3. Enter each block using the phone’s keypad


🔐 Step 4: Receive the Confirmation ID

  1. Once the Installation ID is validated, you will receive a Confirmation ID

  2. Carefully note down the 8 blocks of numbers


✅ Step 5: Finalize Activation

  1. On your Windows screen, click Enter Confirmation ID

  2. Enter the blocks one by one

  3. Click Activate Windows

🎉 Your Windows 11 is now successfully activated!


🧩 Good to Know:

  • This method works with Windows 11 Home, Pro, or Enterprise

  • Your license is tied to the motherboard after activation

  • You can always check activation via:

    Settings → System → Activation


❓ Need Help?

📧 Contact our technical support:
support@destock-teck.com
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