I only want to ask you if i can use winoptimizer 2013 of a shampoo because its the only who desfragments my harddrive and mantain his help, i use tune up utilities and deflager and always have a 7% of fragmentation. Another cuestión, can i use this software to clean the registry?, did anyone use it to optimize your pc?. And can i use malwarebytes free to scan my computer on demand periodically. I know thats not bitdefender products but i ask you that because i have a original licence of a shampoo and many security products are compatible whith malwarebytes. I ask in the english fórum because the answer are fast but i dont speak english. I want to ask you this because i dont want to malfunction on my bitdefender Windows 8 security who Works very fine and fast in a clean instalation, i dont want damange this. Thank you very muy and god bless you