Comments emmrecs wrote on 2/7/2020, 1:32 PM @william-b Welcome to the Magix forums. That message is a Windows error code, so not something specific to Music Maker. This Google page gives a large number of possible causes and solutions but do ensure you read all the information thoroughly and attempt any repair very carefully. JeffForum Moderator johnebaker wrote on 2/7/2020, 3:05 PM @william-b Hi Before trying any fixes - are you using Windows Defender as your Antivirus/Firewall software - if not what are you using? What version of Windows are you using? John EB Forum Moderator 1