Bitdefender Total Security 2018 user's guide
https://download.bitdefender.com/resources/media/materials/2018/userguides/en_EN/bitdefender_ts_2018_userguide_en.pdf
Bitdefender Internet Security 2018 user's guide
https://download.bitdefender.com/resources/media/materials/2018/userguides/en_EN/bitdefender_is_2018_userguide_en.pdf
Bitdefender Antivirus Plus 2018 user's guide
https://download.bitdefender.com/resources/media/materials/2018/userguides/en_EN/bitdefender_av_2018_userguide_en.pdf
