[mariaedelyn]

Yes! It is important to do backup for safety purposes. I experienced many times that my files were corrupted because of viruses, that was during my defense of my Project feasibility study and proposal defense of my thesis writing. If I don't have any back-ups, how can I submit my manuscripts to the panel members? You can back it up on your blank CD's, flash drives, send it on your emails and/or external hard disks.

[Mary Joy]

Yes, usually in pendrive and google drive.

[kat82]

if it does, with what frequency usually do? where you store the files ? CD , pendrive , Cloud?

I do backups of my sites using updraft. I have set it to do database weekly and files fortnighly. Yes, this helps me ensure that I have backup everytime I need it. Google drive is my storage.