To re-activate your computer, you can use the local reactivation procedure if your computer was initially activated using proxy activation and has not undergone significant hardware changes. Here are the steps to follow:
- Open the Volume Activation Management Tool (VAMT) and ensure you are connected to the desired database.
- In the left-side pane, select the product you wish to reactivate to display the products list.
- Select the desired products from the list in the center pane.
- Click on Activate in the right-side pane, then select Apply Confirmation ID.
- Choose your credential option. If you need to use alternate credentials, enter the appropriate username and password when prompted.
- If you are using a different product key than the one used for initial activation, you will need to complete a new activation to obtain a new Confirmation ID (CID).
- Follow the prompts to complete the reactivation process.
If your computer has undergone significant hardware changes, you will need to obtain a new CID from Microsoft.
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