Procedure entry point in file ... not found

Problem description:
The error "Procedure entry point x in file y not found" is displayed. (A more detailed description of x and y is not relevant here)

This error occurs if an update has not been completely performed. An update can be interrupted by various factors, for example, an antivirus application running in the background.

Solution:
Uninstall TuneUp Utilities.
Download the trial version of your TuneUp Utilities product from: http://www.tune-up.com/download/
Install TuneUp Utilities again.