What means the error message: ”Outlook installation could not be found”?

Please make sure Outlook is installed and the profile you want to import the data is set up completely (you have to start Outlook at least one time with a new Outlook profile). 

In the majority of cases this is happened and the error message is misleading. The error appears while importing the data in the Outlook pst file. This can have two causes: 

1. The pst file is blocked by another program, e.g. an Outlook backup or ActiveSync. Please try to find out and deactivate the program if possible.

2. The pst file is corrupt and you should check and repair your Outlook profile(s) and pst file(s). Use OLfix for this.