I've got a desktop PC running Windows 10. I've had a free Dropbox account for some time which I've accessed solely through the web. Recently I've upgraded to the 2TB option as I want to use Dropbox to back up my documents. I've downloaded the Dropbox app. An added complication here is that I have 2 drives - the C drive is used for my software and the D drive houses my files etc. I've downloaded the Dropbox app to This PC>New Volume (D:)>Dropbox as I understand the app has to be on the same drive as the files. However when I try to start the backup process for my documents it says it cannot do it and when I click on the help link it takes me to a very complicated page which I don't understand. Could you tell me what has to be in place for the backup process to work?