I have replaced my external hard drive with the music library with a larger one and assigned it the same drive letter in Windows as the previous one had. Before Audirvana took less than five minutes to perform the startup scan. Now it takes more than half an hour. I have done all the database maintenance tasks and it still does not work well. The Audirvana database always gives problems. Now I will have to install from scratch and do a lot of work to keep my favorites and over a hundred playlists. This is a problem I have seen on the forum dozens of times over the years and years. And it remains unsolved.