My hard disk is full. I already moved lots of photos from other folders on the hard disk to other external hard drives, so there are a lot of question marks in Lightroom. So, are those photos still taking up room on the computer hard disk? I want to move everything I have in Lightroom off of the computer to another external hard drive, in hopes that will free up space. I watched a tutorial, and read some things about it, but I need simple instructions please.