How to change attributes of all folders/directory/files in dos

Few days ago, I connected my Flash Drive/ Pen Drive to my friend’s PC. My Pen Drive was infected by  virus.

This is a simple worm. It just make all your directory as system director and also make it hidden.(if you are using Microsoft windows as operating system).

So, I just First I deleted all those exe files and deleted recycled directory as well. This should remove your virus. But still you need remove the effect of virus. You need to update back the folder attributes.

You can do it by single line command:

[your drive letter]:/>attrib –s –h –r /s /d

F:/>attrib -s -h /s /d