Install Libreelec over existing KODI

I have a HTCP (x86) that was running Win 10 and KODI. For various reasons I tried to install Libreelec on that machine. It runs, and works, however all of my media is on drive D (c being the OS) and shows up as /var/media/Data. The problem I am encountering is that this has been set as a read-only drive, and I need to make changes to it. Also all of the library directories have been mapped to the C drive. I need to change that also.