1st thing I would do is copy all the data on the other drives to another external source. Just in case it all turns to custard, easier to do a backup...
As Bryan stated, what's the Hurry. I personally leave any media in until it goes to the first desktop after installing, It could come out earlier but...
Came through good enough. At first it wasn't showing, decided to do a reinstall a while back as the original Drive wasn't exactly in good health and...