Supported Operating Systems
Using Code42 Backup
- How to open
  - Windows
  - Mac
- Restore
Files Excluded from backups
Basic Troubleshooting
- Checking Code42 Server Status
- Restarting Code42 Backup Services
Managing Code42 for IT Admins
Quick References to Code42 Documentation

Supported Operating Systems

Below is a current list of supported operating systems as of June 3, 2025 for the Code42 Backup Agent. Please see the full list and their expected end of support dates on Code42 website at Supported Operating Systems.

Windows Windows 11, version 22H2 and newer
Windows 10, version 22H2 and newer
macOS Ventura 13 and newer
Red Hat Enterprise Linux 8 and newer
Ubuntu 22.04 and newer
Amazon WorkSpaces with the listed Windows version above.

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Using Code42 Backup

Code42 client is an application for backing up a workstation, where backups run seamlessly. The Code42 client would only need to be opened for restoring or changing selections of files.

How to open

Windows

Click the Windows menu in the lower-left corner (or press the Windows key on your keyboard).
Click All apps (or type "Code42" in the Windows search field).
Select Code42.
To open the Code42 app from the Windows notification area:
- Click the up-arrow icon in the lower-right corner.
- Click the .

Mac

Open the Finder.
Select Applications (from the left column).
Double-click Code42.
To open the Code42 app from the menu bar click the .
To open the Code42 with Spotlight:
- Press Command-Space bar to open the Spotlight search bar.
- Type Code42. Press Enter or select the Code42 app from the list of applications.

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Restore

Click Restore Files.
Click to select the files and folders to be restored. Click Restore Files.
To restore from an earlier time period, click As of Today, select the date, then click Restore Files.
Select the Files' options. Click Go. File options for Restore are:
- Save selected files to: Desktop, Downloads, Original Location or Other.
- If the file already exists: Rename or Overwrite.
- Permissions: Current or Original.
When the restore is complete, a notification will appear.

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Files Excluded from backups

The Code42 backup agent is designed to back up user-created files while excluding certain system, temporary, and application-related files to optimize performance and storage efficiency. Here's a summary of the default exclusions for which DIT does not have the ability to override:

Downloads directories
Web browser profiles, caches, cookies, and temporary files
System files and logs
Application and program files
Files over 10 GB in size

More detailed information can be found on Code42's page Files excluded from backup by default.

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Basic Troubleshooting

Checking Code42 Server Status

Status updates of Code42 systems can be found here to see if there is any current outages reported: https://status.code42.com/

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Restarting Code42 Backup Services

Please use the basic restart for all operating systems recommended by Code42 below before using other steps to restart the Code42 services/software.

If you are able to open and sign in to the Code42 agent, follow the steps below to restart the Code42 service.

Open the Code42 agent.
If necessary, sign in to your account.
Use the keyboard shortcut for your operating system:
- Windows: Ctrl+Shift+C
- Mac: Option+Command+C
- Linux: Ctrl+Shift+C
  The command-line area opens.
Enter this command:
restart
Press Enter.
This closes the Code42 agent, reauthenticates the Code42 agent with the Code42 cloud, and then restarts the Code42 service.

If the basic restart does not work in resolving the issue, or the client is not working, please use the more Advanced restart procedure available for your operating system. If this does not resolve your issue please reach out to your Departmental IT Administrators first who can work directly with you to resolve your issue. Departmental IT Admins can reach out to DIT by submitting a ticket to backups-help@umd.edu to help resolve or report any issues with Code42.

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Managing Code42 for IT Admins

Adding Users to your Code42 Organization

Departmental IT Admins can add users to their organization via the Grouper groups that have been setup for your organization. To access to grouper groups please use the following directions.

Sign into Grouper at https://grouper.umd.edu
Navigate to Root > Active Directory Groups > Code42 using the Browse folders on the left side by clicking on the "+" next to each folder.
Locate the group that corresponds to your organization in the list under "Code42" and click on the group.
The right side will populate with a list of users that are currently in the group. Click on the "+ Add Members" in the top right to add a user to your Code42 organization.
In the "Member Name or ID" field input the directory ID of the user you wish to add and wait for the auto populated list to appear. Then choose the user from the list of names given, and then click the "Add" button.
Once you have added the user you can close the browser window. Please wait upwards of 24 hours to have the user's information synced to Code42 before having the user sign into the Code42 console: https://console.us.code42.com/.

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Removing Users from your Code42 Organization

Departmental IT Admins can remove users to their organization via the Grouper groups that have been setup for your organization. To access to grouper groups please use the following directions.

Sign into Grouper at https://grouper.umd.edu
Navigate to Root > Active Directory Groups > Code42 using the Browse folders on the left side by clicking on the "+" next to each folder.
Locate the group that corresponds to your organization in the list under "Code42" and click on the group.
The right side will populate with a list of users that are currently in the group. Click on "Action" button on the line for the user that you will be removing from the group and choose "Revoke membership" from the dropdown.
Once the user has been removed you can close the browser window. Please wait upwards of 24 hours to have the user's information synced to Code42.

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Adding or Removing IT Administrators to your Code42 for Organization Administration

Please follow the directions above to adding or removing the user from your Organization as a standard user first. Then submit a ticket to DIT's Backup group at backups-help@umd.edu requesting to have the user added or removed from your list of Code42 Administrators and for which Organization he/she will be Administrating or being removed from. Please allow up to 48 business hours for your ticket to be processed before having the new IT Administrator try to administrate your Code42 Organization, or to see that the Admin has been removed..

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Block, Deauthorize and Deactivating Agents or Users

Departmental IT Admins may want to block, deauthorize or deactivate agents or users from their organization. Please find the three options that can be applied to agents (devices) or users of Code42 in their organization with their basic functions and use cases.

Blocking - is a non-destructive action that prevents user access to the Code42 environment while allowing backups created by the user to continue to run without data loss. Useful for Theft or loss of a device, Licensing to block user, or Legal proceeding to restrict a user.
Deauthorizing - signs a user out of the backup agent and stops backups from running but data currently stored on Code42 is unaffected. The user can sign in again at any time to reactivate their backups. Useful for Theft or loss of a device, troubleshooting, and testing.
Deactivating - is a destructive action that stops all activity for an agent, user, or organization and will delete any stored backup data on Code42. Useful for reclaiming licenses for your organization, offboarding an employee, or device removal from use.

The following matrix can be used to help make a decision when removing or deactivating a device from the Code42 service.

	Incydr monitoring	Backup activity	Possible Backup Data Loss	Applies to agents	Applies to users	Applies to organizations
Block1	n/a	Continues	No	Yes	Yes	Yes
Deauthorize1	n/a	Stops	No	Yes	No	No
Deactivate	Stops	Stops	Yes	Yes	Yes	Yes

For a more in detailed explanation please refer to the Code's site: Blocking, deauthorizing and deactivating.

Code42 CLI for Department IT Admins

Code42 has created a command line interface (CLI) that is available to Department IT Admins that have been granted admin rights to their organization. The CLI can be accessed from the web console https://console.us.code42.com/ using a key combination documented on their Incydr console command-line interface reference page. The CLI can help provide remote support by allowing IT Admins to interact with clients to restart, gather logs, and change settings for devices that are not currently in their possession without interrupting the user from actively using their computer. For the full list of available commands please refer to the Code42 Backup agent commands page.

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