- Select the available License trade in the Bitdefender category.
- Make the purchase and payment for your order.
- Wait for the seller to send your order in the form of a License code.
- Open https://central.bitdefender.com/home.
- Create an account or log in if you already have a Bitdefender account
- Select My Subscription, then Activate a service with a code
- Enter the code you received from the seller
- Make sure the License you purchased is active and matches the validity period in the trade listing
- If everything is correct, click Completed to finished your purchase on itemku