Relink issues

Hi everyone
I'm working on pc I am continuesly having issue with linking clips when ever close and open davinci it's getting media offline, I work on both various projects and contains different harddrives if I want to open a specific project I eject all the harddrive and connect only what I am working on the project, if open the priveous project after completing this and back to previous project all the files are offline ( I am connecting the harddrives as previously connected)
Any solution for this and drive letter always changes and I have to relink manually and it's consuming time
I'm working on pc I am continuesly having issue with linking clips when ever close and open davinci it's getting media offline, I work on both various projects and contains different harddrives if I want to open a specific project I eject all the harddrive and connect only what I am working on the project, if open the priveous project after completing this and back to previous project all the files are offline ( I am connecting the harddrives as previously connected)
Any solution for this and drive letter always changes and I have to relink manually and it's consuming time