...
*Note that an Admin account is required to uninstall the older version.
Navigate to the /Applications folder in Finder.
Right-click Crashplan.app, and then select Show Package Contents.
Open the Contents folder, and then open the Helpers folder.
Click Uninstall and enter your Admin password when prompted.
A prompt will display notifying you that the uninstall was successful. Click OK.
Open Code42 from the Applications folder.
Enter your full UMICH email address, and then click Continue.
Enter central.crashplan.com in the Server Address field.
A separate web browser opens asking you to sign in to U-M Microsoft 365 with your full UMICH email address and UMICH (Level-1) password.
Click Sign In, and then complete Duo two-factor authentication if prompted. Note that the process might take a few minutes to complete.
...