Skip to main content

Who is this article for?

Code42 for EnterpriseSee product plans and features
CrashPlan for Small Business 

CrashPlan for Small Business, yes.

Code42 for Enterprise, yes.

Link: Product plans and features.

This article applies to app versions 6, 7, and 8.

Other available versions:

Version 4Link: What version am I on?

Code42 Support

Mac Migration Assistant, Time Machine, and the Code42 app


The Code42 app ties every backup archive to its source computer with a unique computer ID. When you migrate the Code42 app using a program like Migration Assistant or Time Machine, the file containing this unique computer ID is transferred from the old computer to the new computer. 

As a result, both computers share the same identity. Changes made in the Code42 app settings on one computer (for example, the computer name) also update on the other computer. Follow this troubleshooting article to assign your new computer a new ID and differentiate the computers for the Code42 app.


The Code42 app on a Mac using Migration Assistant or Time Machine.

Recommended solution

Perform a complete uninstall and reinstall of the Code42 app on the new device.