Excuse for my English, at installation progress bar some times jumps 55-58-59-55-58-59%... And as a result on 55% produces an error: "the installation process cannot be resumed. A rollback of the failed component will be performed. Some applications have been installed succesfully and can be used. Do you want these applications to be uninstalled?" I used: Nero-9.2.6.0 NAR-Beta (Has downloaded today) Yesterday tried with NAR 1.2.4, precisely same error Has noticed that is not installed uninstaller nero. But the installed programs work. Command line parameters: TempMode Silent=1 Overwrite=1 Setup=Setupx.exe /i /qb LOGLEVEL="ERROR" SERIALNUMBER="Serial number " EULAACCEPTED="1" REMOVEAPP="unit_app_1, unit_app_10, unit_app_12, unit_app_14, unit_app_16, unit_app_17, unit_app_50, unit_app_64, unit_app_65, unit_app_66, unit_app_67, unit_app_68, unit_app_71, unit_app_74" INCLANGUAGES= "RUS" Setup=Def.exe \RUS log: