hello friends , this is a  method of adding passwords to your personal folders after compressing the folder if not then don’t worry , this is for you,

note: no need of software

step 1: compress any folder you want
right click > send to > compressed(zipped) folder

step 2: open the compressed folder , when you see your files, then right click on empty area and   click on add password ,type you desired passwords two times and click ok, that’s all.

Note: You can use this method for small files as well as for video clips too , you don’t have to extract the files , simply open
the compressed folder and double click on any file , you will see that it is asking for passwords, their is no need to use any software at all,
it’s in built in windows, enjoy !