Skip to main content
Code42 Support

Upgrading CrashPlan For Home from a version earlier than 4.4.1

Applies to:

    Overview

    We strongly encourage you to use the most up-to-date version of the CrashPlan app. In particular, versions of the CrashPlan app before version 4.4.1 contain a security vulnerability that can put your computer at risk. In most cases, the CrashPlan app upgrades itself automatically, but in rare instances, the automatic upgrade is not successful.

    This article explains how to manually upgrade to the latest version of the CrashPlan app by uninstalling and reinstalling the CrashPlan app.

    Affects

    Devices with version 4.4.0 or earlier of the CrashPlan app.
    To identify your version, open the CrashPlan app and go to Settings > Account.

    Before you begin

    Before upgrading, make sure that your computer meets the system requirements for CrashPlan version 4.4.1.

    Unsupported operating systems
    If your device does not meet the minimum system requirements for the CrashPlan app version 4.4.1, you can continue using the latest version of the CrashPlan app compatible with your operating system.

    However, previous versions of the CrashPlan app contain a security vulnerability that is fixed in version 4.4.1. If you use any previous version of the CrashPlan app, you do so at your own risk.

    Recommended solution

    To manually upgrade your CrashPlan app to the current version, follow the steps below to uninstall your existing CrashPlan app and install the current version.

    If you are no longer using CrashPlan on your device, we recommend following only Step 1 below to uninstall the CrashPlan app.

    Step 1: Uninstall the CrashPlan app

    Windows

    1. Open the Control Panel, and select:
      • Windows 7/8/10: Uninstall a Program
      • Vista: Programs and Features
      • Windows XP: Add/Remove Programs
    2. Select your CrashPlan product (CrashPlan PRO or Code42 for Enterprise), and choose Uninstall.

    You may be prompted that another user on the device is signed in. If another user is signed in, it may prevent the CrashPlan app from uninstalling completely. Code42 recommends coordinating with other users to ensure all users are signed out of the account before continuing.

    Uninstall fails
    If the uninstallation fails, follow Microsoft's instructions to fix problems that block programs from being installed or removed.

    OS X

    1. Open the Finder.
    2. Press Command-Shift-G
      A dialog box appears: Go to the folder.
    3. Paste this text into the dialog box:
      • Installed for everyone: /Library/Application Support/CrashPlan/Uninstall.app
      • Installed per user: ~/Library/Application Support/CrashPlan/Uninstall.app
    4. Click Go.
    5. Double-click Uninstall.
    6. Follow the prompts to complete the uninstall process.

    Linux

    1. Download the latest version of CrashPlan for Linux:
      • Home
      • CrashPlan PRO: See Downloading CrashPlan PRO for steps to download the CrashPlan app from the administration console.
      • Code42 for Enterprise: Contact your administrator for guidelines on downloading the CrashPlan app.
    2. Uncompress the TGZ file to Downloads.
    3. Open Terminal and enter:
       cd ~/Downloads/crashplan-install
      
    4. Press Enter.
    5. Then enter:
      sudo ./uninstall.sh -i /usr/local/crashplan
    6. Press Enter.
    7. At the prompt, type YES to uninstall and press Enter.

    Step 2: Install the current version of the CrashPlan app

    Windows

    1. Download the latest version of CrashPlan for Windows.
    2. Double-click the CrashPlan EXE file, then click Next to begin the installation wizard.
    3. For Installation Type, click Next to accept the default setting, Everybody (all users).
      The CrashPlan app will be accessible to all users on the computer. Alternatively, if you have multiple user accounts on your computer and want to back them up separately, see our guide on per user installation.
    4. Sign in to your CrashPlan account.

    OS X

    1. Download the latest version of CrashPlan for OS X.
    2. Double-click the DMG file, then double-click Install CrashPlan.
    3. Follow the prompts to complete the installation using the default settings.
      The CrashPlan app will be accessible to all users on the computer. Alternatively, if you have multiple user accounts on your computer and want to back them up separately, see our guide on per user installation.
    4. Sign in to your CrashPlan account.

    Linux

    To install the CrashPlan app on Linux, run the install.sh shell script. For more detailed instructions, refer to the step-by-step information below.

    1. Download the latest version of CrashPlan for Linux.
    2. Extract the TGZ file to Downloads.
    3. Open Terminal and enter the following command:
      cd ~/Downloads/crashplan-install
    4. Press Enter.
    5. Then enter: sudo ./install.sh
    6. Press Enter to continue with installation.
    7. When prompted, type y or n to each prompt, and press Enter to complete the installation.
      The CrashPlan app opens after the installation completes.
    8. Sign in to your CrashPlan account.