My computer was updated and my new iTunes didn't have a library. I was able to search and find half of my library but I still have a TON of stuff missing. I imagine the rest is backed up SOMEWHERE on my computer, I just have no clue how to find it, if it is there.

Mac or PC?
Do you have a second backup?

It's a PC and I do have a second backup. Here's what happened. We had an old computer. A loong time ago I backed my itunes up on that old computer. But I got a ton of music since. Now when we switched computers the guy said he took ALL the files on our computer and just backed it up and moved it to the next computer so its all locked away somewhere but I don't know how to find it. I found all the music I had backed up before but supposedly my more recent music should still be on this computer... somewhere