Hello guys! I've tried kyor & Toto51 ideas it works really. The errors doesn't appears in a fresh install. If do not, please use nero general clean tool with a registry cleaner (ccleaner it's fine). So i've worked around thi ideas. That's all: create a registry key like this one Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\ahead\Installation] @=dword:00000000 "IsNero6Uninstalled"=dword:00000001 "IsNero7"=dword:00000001 [HKEY_LOCAL_MACHINE\SOFTWARE\ahead\Installation\Families\Nero 7\Info] "Version"="7.7.5.1" "User"="Happy Hippo" "Company"="The best" "EulaAccepted"="1" [color="#FF0000"]"Serial7_**********"="****-****-****-****-****-****-****"[/color] [HKEY_LOCAL_MACHINE\SOFTWARE\ahead\Installation\Families\Plugins\Info] [color="#FF0000"]"Serial7_**********"="****-****-****-****-****-****-****" "Serial7_**********"="****-****-****-****-****-****-****" "Serial7_**********"="****-****-****-****-****-****-****" "Serial7_**********"="****-****-****-****-****-****-****"[/color] [HKEY_LOCAL_MACHINE\SOFTWARE\ahead\Installation\Settings] "DONOTRUNSETUPX"=dword:00000000 "REBOOT_REQUIRED"=dword:000003ec "AutomaticUpdate"=dword:00000000 The red keys are simply the code of nero 7 + plugins, if not necessary delete the key plugins\Info. So we will start the installation with a cmd file: CLS @echo off ECHO. ECHO. COLOR C7 ECHO Install NERO 7 ULTRA Edition ECHO ___________________________________ ECHO. ECHO Please wait... ECHO. regedit /s %CDROM%\Install\nero7\nero7.reg start /wait %CDROM%\Install\nero7\Redist\DirectX\dxsetup.exe /silent start /wait %CDROM%\Install\nero7\SetupX.exe /qb! /NORESTART RebootYesNo="No" NERO_SCOUT="FALSE" AgreeToLicense="Yes" EULA_AGREEMENT=1 ECHO. EXIT Where %CDROM%\Install is yours favorites directory! Thats all folk! Byez and TNX