Unwanted folder and tags showing up in media center

I just got a new compaq computer and transfered in some photos just fine, but
when I go to picture library or video library it shows a folder labeled
"Compaq (C". I do not want this folder to show up but can't turn it off in
prefrences. Also I deleted the sample photos and their tags in Windows Pohto
Gallery, but the tages are still showing up in photo library. Is there
someway I can get these to go away?