When you open an online-only file, Dropbox automatically makes it available offline again, but you can change it back to online-only at any time. Dropbox removes this file or folder from your computer’s hard drive, so that it only takes up space in your Dropbox account online. You can only open it if you’re connected to the Internet.

If you set a file or folder to online-only, you’ll still see the file or folder in the Dropbox folder on your computer, but it’s just a placeholder. This means that they take up space both on your computer’s hard drive and in your Dropbox account, but are available even when you’re not connected to the Internet. If you haven’t set a file or folder to online-only, then all files and folders in the Dropbox folder on your computer are available offline. Click Make online-only or Make available offline.Right-click the file or folder you’d like to set to online-only.Open File Explorer (Windows) or Finder (Mac).We would love to hear your thoughts via email and make any improvements to future versions of this app.How to set a file or folder to online-only or available offline We've worked hard to make Drive Clean as simple and efficient as possible for you to use. Removes thumbs.db and other Windows files that are not required.Erases unnecessary files permanently from your drives, and not just moving them to the Trash.Cleans up useless service files that your media players fail to play.Runs in docked menubar mode or free floating mode.Works with external HDDs, flash drives, DMG files and network volumes.Access and eject your drives directly from the simple menu.

Eject all external and DMG drives with a single click.

Clean up external hard disk drives (HDDs) and flash drives from accumulated junk manually or automatically.

Furthermore, the app allows you to easily see all your available drives in one simplified menu. This junk is typically generated by OS X and Windows, and includes. It cleans up your flash drives (pen drives, thumb drives), memory/SD cards and external hard drives from unnecessary junk that is created on your system. Drive Clean is a perfect companion app for managing the removable drives on your Mac.

How to clean my mac hard drive