Who is this article for?
CrashPlan for Small Business, no.
Code42 for Enterprise, yes.
Link: Product plans and features.
This article applies to version 4.
If your CrashPlan app gets stuck when upgrading to a newer version, follow the instructions in this troubleshooting article to remedy the issue.
If the CrashPlan app never finishes upgrading, simply uninstall and reinstall the application. Your backup is not affected by uninstalling the CrashPlan app.
Contact your administrator for instructions on downloading the CrashPlan app