How to Fix Error 1603: A Fatal Error Occurred During Installation

How to Fix Error 1603: A Fatal Error Occurred During Installation

Commands Used:
msiexec /unregister
msiexec /regserver

Issues addressed in this tutorial:
a fatal error occurred during installation on server netbackup

If when you try to install a Windows Installer (MSI) package, and you receive the error message A fatal error occurred during installation accompanied with the error code 1603, then this post is intended to help you. In this tutorial, we will identify the potential causes, as well as provide the most suitable solutions to the issue.

Windows Installer doesn’t always install the software as required and might occasionally return an error message stating, 1603 Fatal error during installation.

This tutorial will apply for computers, laptops, desktops, and tablets running the Windows 10 operating system (Home, Professional, Enterprise, Education) from all supported hardware manufactures, like Dell, HP, Acer, Asus, Toshiba, Lenovo, and Samsung.

[-southcarolina]

The last segment fixed me up thank you very much I'm 58 years old and I love flight simulator and it's installing now once again thank you

[RocZi]

sadly these 2 methods did not help me. i am trying to reinstall PDF architect and this error keeps coming up and it tells me to close all applications to continue.

[TheRubberDuck]

Just encountered this issue and the soultion worked like a treat, thank you

[zzsavina]

Tip with Windows services/win installer helped me, thank you, friend.

[jaddeeb]

Just to let you know, this fixed it for me, thank you :)