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This article applies to Code42 for Enterprise version 5.

Other available versions:

Version 6 | Version 4icon.qnmark.png

Code42 Support

Replace your device

This article applies to Code42 for Enterprise version 5.

Other available versions:

Version 6 | Version 4icon.qnmark.png


When you get a new device, Code42 CrashPlan's replace device wizard can help you transfer files, move your backup, and update settings from a previous device. We recommend using the replace device wizard if you are:

  • Moving a backup to a new device
  • Replacing an old device
  • Replacing your device's main hard drive
  • Recovering after an operating system reinstall

These instructions apply to users working at endpoint devices with CrashPlan apps versions 5.1 and later. They do not include transferring Windows user settings (USMT data).

To work with older versions of the CrashPlan app, the administration console, or USMT data, select the appropriate article from Use Code42 to simplify device migration.


  • Backup starts once you complete the replace device wizard. In the meantime, your device is not backing up.
  • Any changes you make to Device Preferences prior to completing the wizard will be replaced with your previous device's preferences in Step 3 of the replace device wizard.
  • If your account uses an enhanced security setting (archive key password or custom key), you must enter your security information several times when replacing a device. You are prompted to enter your archive key password or custom key:
    • After signing in to a device that has never backed up
    • Before viewing and transferring files from your backup to your new device
    • After settings are transferred to your new device
Completing the replace device wizard
It's OK if you can't complete all of the replace device steps during a single session. You can close the CrashPlan app, or shut down your device, at any time. After choosing the device you want to replace, the CrashPlan app automatically remembers where you left off and returns you to that step. Additionally, any files you choose to transfer will continue to transfer even when the CrashPlan app is closed.

New device setup recommendations

When replacing a device, before undertaking the following steps, we recommend setting up the new device with the same username and drive letter that you used on your previous device. If the username or drive letter on your new device is different than on your old device, you risk having backup problems, and later you may need to update your file selection to include the new location of your files.

If you take the time before device replacement to set up the new device with the same username and drive letter, the CrashPlan app can then synchronize with the destination and continue backing up files using the same username and drive letter on the new device.

Before you begin

The first time you sign in to the CrashPlan app on a device, CrashPlan detects whether there are other devices on your account. If there are other devices on your account, CrashPlan prompts you to either:

  • Add New Device: Starts a new backup for this device. Use this option if you plan to use both devices.
  • Replace Existing: Starts the replace device wizard, which includes choosing a device, transferring files, and updating settings. Use this option if you plan to use the new device instead of the existing device.

Add new device or Replace existing device?

Choose Replace Existing to use the replace device wizard. Click Start to begin the wizard.
I don't see the option to replace a device

More information
Throughout the replace device wizard, you can mouse over underlined text for additional explanations and helpful tips.

Step 1: Choose a device to replace

After starting the replace device wizard, all of the devices on your account display, sorted by most recent activity.

  1. Choose the device you want to replace.
  2. Click Continue. You can identify which device to replace by:
    • Device name: By default, the device name matches the user name of your device.
    • Date Created On: Date the CrashPlan app was installed on that device.Choose existing device to replace

In the following, less common, situations, CrashPlan may prompt you for additional input based on the device selected.

  • Different operating system: If your current device has a different operating system than the device selected, CrashPlan will notify you about limitations. Learn more about these limitations before continuing.
  • No cloud destination: If the device you selected backed up exclusively to local destinations, then CrashPlan will prompt you to attach a local destination now.

Step 2: Transfer files to your new device

You can now transfer files from your previous device to this device. Because users may have different goals and needs when replacing a device, there isn't a single "right way" to transfer files. The steps below describe the most common need, which is transferring your entire user folder.

The importance of transferring files
We strongly recommend transferring all of the files from your previous backup to this device. Any files in your backup that aren't transferred are retained as deleted files. Deleted files are at greater risk for unintentional data loss because they are less visible in your backup file selection, and they may be periodically removed from your backup based on your retention settings. If you or your administrator already transferred files to your device, you can click Skip File Transfer to skip this step.

Select files

  1. Click Select Files To Transfer to open the file browser.
  2. Browse to the user folder for your previous device (typically, the folder matching your name).
  3. Select a single folder within your user folder (for example, Documents).
    Files transfer in the order that they are added to the downloads manager. Consequently, we recommend choosing the folder you think you will need access to first.
  4. Click Get Files.
  5. From Save selected files to, select Other.
  6. From the file browser for your device, select the user folder on your new device (typically, your name).Get Files Options
  7. Click Go to begin transferring the selected folder.
    The transfer is added to your downloads manager.
  8. Repeat Steps 2–5 for each additional folder in your user folder (Desktop, Downloads, Pictures, Music, and so on).
  9. When you have queued every folder in your user folder for transfer, click Continue.
    All of the folders and files queued for transfer display. It's important to let all files transfer before continuing to the next step. This way, when CrashPlan scans your device after transferring your settings, it can accurately compare the files on your device and those in your existing backup archive. The Continue button is disabled whenever files are transferring or queued for transfer.
  10. Once all of your transfers are complete, click Continue.

Transfer Files

Download tips
  • It is safe to close the CrashPlan app while the files download in the background.
  • If you are downloading a large amount of data, consider optimizing your computer settings to prevent disruptions.
  • Alternatively, if you don't want to download all of the files at once, you can shut down or put your device to sleep and the download will resume where it left off when it is powered on again.

Step 3: Transfer settings to new device

Next, the wizard will transfer and update your CrashPlan settings, which includes:

  • Linking your previous device's backup archives to this device.
  • Transferring your file selection, backup settings, and device preferences to this device.
  • Updating your file selection to include the new device.
    CrashPlan will add the folders that your administrator has chosen as your default backup selection.

Transfer settings

  1. Click Continue.
    You are signed out of the CrashPlan app.
  2. Sign into the CrashPlan app.
    The success message, "Your device is ready!" displays.
  3. Click Finish.
    The Home screen displays.

Your device will now resume backing up.

What to expect after device replacement

After replacing your device, the CrashPlan app resumes normal operation. But, you might notice the following behaviors or differences.

File verification scan

You might notice the file verification scan running after replacing your device. By default, the file verification scan runs daily to inspect your file selection for any new, changed, or deleted files. CrashPlan runs additional verification scans to detect data corruption, purge files that are no longer selected for backup, and prune file versions and deleted files according to your frequency and version settings.

During the scan, CrashPlan is calculating the full size of your backup selection. As a result, it cannot report the percent complete. This is expected behavior. However, if you have concerns, you can take some additional steps to confirm that your backup is not starting over.

File verification scan

Manage files warning

Allow backup to fully complete before managing files
For efficiency, we recommend waiting until your backup reaches 100% complete before you deselect any folders or files copied from your previous device to your new backup selection. This enables CrashPlan to record that a given file has a new location, rather than backing up a new copy of that file. As a result, you avoid repeating the potentially lengthy initial backup.
Delete from selection = delete from archive
Be careful of removing folders and files from your new backup selection. Deselecting folders and files immediately deletes them from your backup archive. You cannot restore folders or files once you delete them from your backup selection.

Frequently asked questions

About the replace device wizard

Does my device back up while I'm completing the replace device wizard?

No. You must complete the replace device wizard before your device will start backing up.

Do I have to complete the replace device wizard in a single session?

It's okay if you can't complete all of the steps during a single session. You can close the CrashPlan app, or shut down your device, at any time. After choosing the device you want to replace, the CrashPlan app automatically remembers where you left off and returns you to that step.

Can I close the CrashPlan app or my device when I’m transferring files?

Yes. CrashPlan will transfer files, even when the app is closed. If you shut down your device, CrashPlan will resume transferring files when you sign back in to your device.

Enter and exit the replace device wizard

I don't see the option to replace a device. Can I still use the wizard?

Yes, you can open the replace device wizard at any time. From the CrashPlan menu bar, select Tools > Replace device (Windows and Linux) or File > Replace device (OS X) to open the replace device wizard.

Replacing a device after starting backup
If a device is already backing up, then replacing it with a previous device:
  • Deletes the backup archive. Step 3 of the replace device wizard transfers settings from the previous device to your current device. This includes replacing the current backup archives with those from the replaced device.
  • Overwrites any changes to device preferences and backup settings. The current settings and preferences are overwritten with those from the previous device.

Choose a device to replace

I don't want to replace any of these devices. Can I start a new backup of this device instead?

Yes. In Step 1, select Add as new device to exit the replace device wizard. Alternatively, if you already started a backup of your current device, choose Use current device to continue where it left off.

I chose the wrong device to replace. Can I change devices?

If you accidentally select the wrong device, you can change it at any time up until you transfer the selected device's previous settings to this device. In the upper-left corner of Step 2, select Change Device.

Can I replace a device with a different operating system than my current device?

Yes. However, CrashPlan will warn you about certain limitations and differences when compared to replacing a device with the same operating system. Learn more about replacing a device with a different operating system.

Transfer files to your new device

I already transferred my files. Should I still use the replace device wizard?

Yes. If you or your administrator already transferred files from your previous device to your current device, the replace device wizard can still help you transfer your settings and reconnect your previous backup archives to your current device. By reconnecting to the previous device's backup archives, you avoid repeating the potentially lengthy, initial backup. In Step 2, you can choose Skip file transfer.

Can I transfer files from a local destination (like an external drive)?

Yes. If the device you are replacing was backed up to a local destination, you can add that destination and transfer files.

My files were corrupted on my previous device. Can I recover the file version prior to corruption?

Yes. In Step 2, use the As of Date filter to choose a date prior to corruption of your files. If you are unsure of the exact date of file corruption, try transferring a single file first. Once you narrow down the date of corruption, proceed with transferring the remaining files.


Something went wrong. I'm unable to continue or quit the replace device wizard. What should I do?

It's normal for the replace device wizard to take some time, especially when transferring a large amount of data. Whenever possible, we recommend completing all three steps of the replace device wizard. However, if you encounter an unexpected error and become stuck in the replace device wizard, you can manually force it to quit.

  1. Use the keyboard shortcut for your operating system:
    • Windows: Ctrl+Shift+C
    • OS X: Option+Command+C
    • Linux: Ctrl+Shift+C
      The CrashPlan command-line area opens.
  2. Enter the following command: replace.device abort