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"Overlapped I/O operation is in progress" or similar messages appear during installation. What can I do?


This is a known problem on Windows, caused by Microsoft Security Update KB2918614. It is a problem concerning the installation and updates of several products, not only CodeMeter.

Detailed information about the Microsoft Security Update KB2918614 can be found here.

At your own risk, you may uninstall this update as follows:

  • Open a command prompt with administrator rights.
  • Execute the following command: wusa /uninstall /kb:2918614
  • Click "Yes" to uninstall the update.
  • Restart your system.

After rebooting your system, you should be able to install CodeMeter without any problem.

The Microsoft Security Update will regularly be reinstalled by Windows Update, depending on your system settings.