Synology: DSM 7 Installation Archive -- Archived from main thread

I have read it, several tyimes. The best I can understand is I need to uninstall and erase DSM7
My data is all in nseperate folders like \Videos \Movies \Mp3’s just off vol 1. Each seperatly. I still have ll the original Plex folders and the new ones. I just gave acess to internal user then updated again, it started working but has the stopping issue. Am I on tthe right track? Are there instructions on Uninstall & ERASE DSM 7.

Am I to uninstall and erase, then immediatly update it again now that permissions are set?I’m sorry, pretty confused at this point.