Following the FlyChart deinstallation under Windows 7 or Windows Vista, the registry is prepared with the program "Clean_Reg_FlyChart" for a new installation – instead of an update! In case of incorrect or manual deinstallation of FlyChart the program entries of the deinstalled FlyChart are maintained. These registry entries prevent a new FlyChart Installation. By use of the "Clean_Reg_FlyChart" software the registry is completely cleaned from all FlyChart entries. The subsequently following FlyChart installation is no longer possible in form of update, but must be performed as complete version.
If the user has already stored flights in <documents>\FlyChart, this folder needs to be processed in data back-up BEFORE THE START OF FLYCHART!