This article is for an older version of CCC. You can find the latest version here.

Occasionally we receive reports of odd system behavior, such as:

  • When opening a document, the application on the backup volume is opened rather than the version from your startup disk (e.g. Programs launching from the back up drive)
  • When trying to update an application in App Store, the update appears to fail -- the older version is always present (e.g. Aperture not updating)
  • The destination volume cannot be (gracefully) unmounted because various applications or files are in use (e.g. Cannot eject the cloned drive)

These problems consistently go away if the destination volume is ejected.

These problems are ultimately caused by problems with the LaunchServices database, which is an issue outside of the scope of the backup process. There are two things that you can do to address the problem:

Disable Spotlight on the destination volume
Disabling Spotlight indexing on the destination volume should prevent new additions being made to the LaunchServices database that references the destination. Open the Spotlight preference pane, click on the Privacy tab, then drag your destination volume into the privacy tab. Check whether applications still open by default from the destination volume, because this step may be enough to address the issue.

Reset the LaunchServices database
If applications still open from the destination volume, you can use this Reset LaunchServices Register application to reset the LaunchServices database, then restart your Mac.