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CrashPlan Support

Backing Up Files From A Windows Network Drive

Applies to:
  • CrashPlan for Home
Need enterprise or small business documentation?
This article is intended for CrashPlan for Home users. For Code42 CrashPlan and CrashPlan for Small Business documentation, read this page on our enterprise support site.


The default installation type for the Windows CrashPlan app cannot access drives mounted by a user, including many network attached storage (NAS) drives. This is a restriction of the Windows operating system, because the default installation of the CrashPlan app runs as a system-level Windows service.

Some users have backed up files from a network drive with CrashPlan's per-user installation option on Windows, which installs the CrashPlan app as a user-level service. However, setting up per-user installations for use with network drives is not a supported CrashPlan configuration.

Unsupported Process
The information presented here is intended to offer information to advanced users. However, Code42 does not design or test products for the use described here. This information is presented because of user requests.

Our Customer Champions cannot assist you with unsupported processes, so you assume all risk of unintended behavior. You may want to search our support forum for information from other users.

Installing the CrashPlan app per user

Some users have successfully backed up network drives from a Windows computer by installing the CrashPlan app per user. This installation allows you to add the mapped drive to your backup file selection.

If the CrashPlan app is already installed for everyone on your computer, you can completely uninstall the CrashPlan app and reinstall per user instead.