Windows - Guide to Phone Activation

Step 1: Enter Product Key

Press Windows Key + I to open Settings. Navigate to "Update & Security" and then to "Activation".

Now enter the product key found on your invoice. If Windows is not immediately activated, you will receive the error code 0xc004c008. Proceed with the next steps if that happens.

Step 2: Open Activation Dialog

Press [Windows Key] + [R]. In the dialog box, type "slui 4" and confirm.

Step 3: Select Language and Region

Choose your preferred language. In the next window, you will see your installation ID and a toll-free phone number.

Step 4: Call Microsoft

Call the toll-free number displayed on the screen.

Note: Microsoft does not accept calls from blocked numbers.

Step 5: Provide Installation ID

When prompted, provide your installation ID to the system.

Step 6: Number of Installations

When asked how many devices Windows is installed on, answer 0.

Step 7: Enter Confirmation ID

The system will provide you with a confirmation ID. Enter this ID into the fields labeled A-H.

Final Step

After successfully entering the confirmation ID, your Windows will be activated.

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