Difficult, completely unstable installer. Wasted nearly 2 hrs trying to install in my Win 10 x64 computer. Tried all configurations, such as Typical or Complete installation, with and without administrator privileges. Rebooted repeatedly to clear all programs and buffers, and ran the installer alone without any other programs. Tried the 32bit version in frustration, but it refuses to install on a 64 bit OS. Come on, O&O folks. You are seasoned professionals. How could you release such a bad piece of software to the market? ALL attempts at installation result in a “Fertig stellen” message, and the rest of the error message cannot be copied.