I often empty out my Trash via Secure Emptying it. However, sometimes I get a message like, "Can't delete Evernote 22.214.171.124 dmg because the application is in use." I am confused. If I download a program, like Evernote for example, and then install it, can't I drag the item from my Downloads folder to the Trash? Once installed, the .dmg file doesn't serve a purpose right? Sometimes, I'm prompted to drag a file I've just downloaded into the Applications folder. After doing that, I usually clean out the downloads folder by dragging items into the Trash. Same thing goes for when I update software. I will download and install the new version, and then drag the older dmg file into the Trash. So why does it say the app is running when I'm trying to empty the Trash? Could these kinds of items dragged into the Trash explain why I seem to have 3,000 some odd items in my trash when I go to Secure Empty it? Thanks.