Lazy or incompetent?

OK! Normally I shouldn’t post this but here it goes. I need some things to be done so I made a list where I wrote who should do what, how and by when. A pretty simple list it was. One of the requirements in the list entailed to have some files copied from the hard drive onto a USB stick.
I know, I know most of you will laugh at the “complexity” of this action. Doing Drag and Drop actions require a lot of intellectual capacity. A Phd may even turn out to be handy. I was talking with the person whom I handed the list today and he informed me that the person in question had “trouble” to solve the issue.
I do not want to believe that someone who is using a pc frequently cannot accomplish this mundane task. I rather believe he is too bored to bother himself. I can go on without acquiring this information. On the other hand he will have a difficult life in the future without these skillsets.
But honestly I would like to receive this data to facilitate my work. Oh I got also scolded for not writing explicitly what I want in one line. I went through the list and asked if he was responsible for that according to my directions. He said no but insisted I should give more information. I replied to him letting him know that the one to whom the letter was addressed will know what to do and of course it makes no sense to him since it is not his area of expertise.
Anyway it is getting late and I have to wake up early tomorrow. I am resolved to the fact that person A is either extremely incapable of doing what he is told or that his laziness knows no boundaries!