At times you might fail to activate your device with the Bitdefender Antivirus. The reasons could be as hereunder: 1) You are entering the wrong email id that is not registered with the Central Bitdefender Login Account. Therefore, always enter the right email id that you have submitted at the time of registration on which you have received the activation code 2) You are entering the wrong password. Remember to type the right password with the correct use of uppercase, lowercase, and numbers.

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