You may come across Error Fatal Error During Installation when you install a a) Press Win + R, type “msiexec /unregister” and hit Enter. The Windows Installer installs and removes software with MSI package formats. However, Windows Installer doesn't always install software as. [SV] Linux - setup - warning text when installing 32bit server over 64bit [SV] Groupware Service - Synchronization of files folders done 4q5dproi.ga [-] Migrator - problems with [#LBJ] IMAP Service - problems with SETMETADATA. details: "4q5dproi.ga" at ; source =Error installing Windows Installer engine. ]Lbj+\=4^. Error A fatal error occurred during installation, what causes it and how to resolve it. 4q5dproi.ga This report is generated from a file or URL submitted to this webservice on October 10th (CEST) Guest System: Windows 7 32 bit.