

You now check for the error to see if it’s fixed.Ĭheck to ensure the program isn’t already installed To open task manager, you should right-click on taskbar, and you’ll see “Task Manager” from the context menu, you can also press Windows + X keys to launch Task Manager directly.Ĭlick on the Processes Tab, you should close every software that’s under apps by clicking on the program and then select “End Task”. You can locate programs running in the background by opening the task manager. Software running in the background can prevent Windows Installer from installing programs, and by closing the apps running in the background you can get rid of the error fast. How To Fix Error 1603 Fatal Error During Installation Close all background Apps Let’s now take a look at the fixes to this error. These are some of the major causes of error 1603 fatal error during installation on your windows device, as already stated, it’s a general error and that means it can show up for so many reasons. Error 1603 Fatal Error During Installation
