Automatically download files from one computer to another
There's a two-step process to automatically migrate files from one computer to another. First, you'll download and install the Dropbox desktop app on both computers. Next, you'll use the app to migrate files between computers.
Before you begin
If you have a large number of files, consider prioritizing them so the files you use every day migrate before archived files
Also consider migrating your data in batches, or doing the migration overnight or on a weekend
Be sure that the computer you're migrating files to has enough hard drive space (by default, the Dropbox desktop app keeps a copy of files on your computer's hard drive)
If you want to delete files from your old computer, or if you want to wipe the hard drive entirely, be sure to first sign out of Dropbox on that computer and uninstall the Dropbox desktop app (this will ensure synced files aren't deleted from Dropbox or from your new computer)
On the computer you're migrating from, open File Explorer (Windows) or Finder (Mac) and navigate to any files or folders that you want to migrate. Drag-and-drop these files or folders to the Dropbox folder on your hard drive.
As long as the computer you're migrating from is connected to the Internet, these files and folders will then upload to your Dropbox account in the cloud.
These files and folders will also sync to your new computer, provided both of the following are true:
The computer you're migrating to is connected to the Internet
You're signed in to the Dropbox desktop app with the same Dropbox account on both computers
The migration is complete when a green circle with a checkmark appears beside the files and folders in the Dropbox folder on your computer. The Dropbox icon in the system tray or menu bar will also say Up to date. You should then see the files and folders on both computers.
During and after migration
The amount of time it takes for the migration to complete depends on the number of files you're migrating, and on the speed of your internet connection (you can control bandwidth as needed)
Don't sign out, change settings, or turn off either computer during the migration process (the desktop app can only sync when you're signed in)
If you lose Internet access during the migration, Dropbox will simply pause syncing, and resume once you're online again
You can check the sync status at any time using the desktop application
If you want to delete files from a computer, or if you want to wipe the hard drive entirely, be sure to sign out of Dropbox on that computer and uninstall the Dropbox desktop app (this will ensure synced files aren't deleted from Dropbox)
Copy files manually
The other way to migrate files is to copy them manually from a portable storage device (like an external hard drive) to the Dropbox folder on your computer. The Dropbox desktop app will then scan the files, and see that they're the same files in your Dropbox account.
Once syncing has completed, copy the contents of your Dropbox folder to your portable drive (such as a USB drive or external hard drive).
On your new computer
Install the latest version of the Dropbox desktop application and sign in to your account when prompted.
The application will create a Dropbox folder and begin downloading files from your account. Stop the download immediately by clicking the Dropbox icon in your system tray (Windows) or menu bar (Mac), and selecting Pause Syncing from the menu.
Copy the files from your portable drive into the Dropbox folder.
Resume syncing by clicking the Dropbox icon in the system tray or menu bar, and selecting Resume Syncing from the menu.
Default location for the Dropbox folder
Note that the default location for the Dropbox folder is different for each operating system:
Linux: /home/yourUserName/Dropbox (such as /home/name/Dropbox).
Mac: /Users/yourUserName/Dropbox (such as /Users/name/Dropbox).
Windows: %HOMEPATH%\Dropbox (such as C:\Users\name\My Documents\Dropbox).
Once you've completed these steps, the Dropbox desktop app will begin scanning the files in your Dropbox folder. If all of these files are the same as the files in your account online, scanning will finish. However if, in the middle of this process, a file has changed in your account (for example, someone else has updated a file in a shared folder), Dropbox will generate a conflicted copy so that both versions of the file are preserved.
By default, Dropbox will try to download all of the folders in your account. If there are folders you don't want taking up space on your computer, you can use selective sync to store them only in the cloud. However, you may need to wait until Dropbox has finished its initial sync of your files before the selective sync option becomes available.
If you're going to copy files manually, you may want to temporarily leave shared folders. You can then copy your non-shared files to the Dropbox folder, and then re-add the shared folders and let them download to your computer. This will prevent Dropbox from generating conflicted copies of files if other people have changed them, as described above.
Dropbox Business users
If you've connected your personal and work Dropbox accounts, you’ll be prompted to link the Dropbox accounts when you download and install the application on a new computer. After you sign in to one Dropbox account, we will recognize that you have linked your Dropbox through the settings on the website and invite you to download a separate folder for your other Dropbox account. If you would like to speed up the transfer process and copy your files manually, just follow the same steps above and repeat separately for each folder.