Windows Media Player/Windows 7

When I start WMP I get a message saying there are no items in my music folder, click Organize to, well fix the problem somehow, I don’t remember the exact message. However, it then starts to “load” all of my music, which takes a few minutes. I don’t believe WMP on my old computer worked this way (Vista) but that the player came up immediately loaded and ready to go. Is this normal behavior?