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Keep computer-to-computer backups when migrating to CrashPlan for Small Business

Applies to:
  • CrashPlan for Home


When you migrate from CrashPlan for Home to CrashPlan for Small Business (previously CrashPlan PRO), your computer-to-computer backups stop. CrashPlan for Small Business does not support computer-to-computer backups, including:

  • Backing up to another computer you own
  • Backing up to a friend's computer

Before you migrate from CrashPlan for Home to CrashPlan for Small Business, you should follow these instructions to convert your computer-to-computer backups into local folder backups. This article shows an example of converting a computer-to-computer backup into a backup to an external hard drive.


  • To keep your computer-to-computer backups, you must perform these steps before you migrate to CrashPlan for Small Business. You cannot keep your backup archives after you've migrated to CrashPlan for Small Business.
  • This article uses some specific terms to describe your computer-to-computer backups:
    • remote computer: the computer receiving your backed-up files, such as a friend's computer
    • local computer: your computer that's backing up your files to the remote computer
    • archive: the collection of files and folders you've backed up
  • At the end of this process, your backup is on an external hard drive. You can apply similar steps to convert your backup to a local backup at another location that you choose.

Step 1: Locate your backup archives

On the remote computer, find the computer-to-computer backup archives. Look for the folder that matches the local computer's GUID, such as 948212309528060501.

  • By default, backups from another computer are stored here:
    • Windows Vista, 7, 8, 10, Server 2008, and Server 2012
      • Installed for everyone: C:\ProgramData\CrashPlan\backupArchives
        To view this hidden folder, open a file browser and paste the path in the address bar.
      • Installed per user: C:\Users\<username>\AppData\<Local|Roaming>\CrashPlan\backupArchives
        To view this hidden folder, open a file browser and paste the path in the address bar.
    • Windows XP
      • Installed for everyone: C:\Program Files\CrashPlan\backupArchives
      • Installed per user: C:\Documents and Settings\<username>\Application Data\CrashPlan\backupArchives
    • OS X
      • Installed for everyone: /Library/Application Support/CrashPlan/BackupArchives
      • Installed per user: ~/Library/Application Support/CrashPlan/BackupArchives
    • Linux: /usr/local/var/crashplan/
  • If you previously changed the default location, find the location you selected.

Step 2: Copy the backup archives

Copy the archive from the remote computer to an external drive. Use an application like TeraCopy or Rsync, which can verify that files don't become corrupted during copying. Wait for the copy to finish before proceeding.

Copy, don't move
When you transfer your archives, we recommend that you copy the archives instead of moving them. This way, you maintain an intact copy of your archives even if your transfer is interrupted by an event like a power outage.

If your archive is already on an external hard drive connected to the remote computer, you don't have to copy the archive. Simply remove the external hard drive from the remote computer and connect it to your local computer, as described below.

Step 3: Attach the archive on your local computer

  1. Connect the external hard drive to your local computer.
  2. Open the CrashPlan app and go to Destinations > Folders.
  3. Click Select.
    Select Archive Location
  4. Navigate to the archive you'd like to attach.
    Look for the folder that matches the local computer's ID. For example, 948212309528060501.
  5. Click Ok.

Step 4: Start a local folder backup

  1. In the CrashPlan app's Destinations > Folders, select the archive you copied.
  2. Click Start Backup.
    CrashPlan begins backing up your file selection to the external drive.

Continue backing up to your external hard drive. CrashPlan for Small Business supports local folder backups, including backups to external drives, so you can safely migrate from CrashPlan for Home to CrashPlan for Small Business.