I need to put Dropbox on an old hard drive that is already used.
I need to put Dropbox on an old hard drive that is already used.
You can see exactly where Dropbox is syncing by looking at the settings under Settings > Syncing path. If nothing has been changed, it will just sit there on "C" (your hard drive). It would probably be a good idea to check that first thing. Then close DB, delete the folder on your old C drive that you don't want it to use, and restart Dropbox again. As mentioned before, if you didn't move anything, it should still show up on current C.
It is best to erase all data from your old hard drive that ran the operating system. Next, move important files over to a new place so you can start fresh and build something new.
You can go into the Dropbox settings and see exactly where it is syncing to. If you leave things as they are, it stays on "C". It probably makes sense to check that spot first, then close the app, delete the folder from your old "C" drive location, restart Dropbox again. As mentioned before, if nothing changed, it should still be on C.