eli5 – Why do most softwares require a system reboot after install?

Question

eli5 – Why do most softwares require a system reboot after install?

In: 14

Answer 1

It often happens in windows, because installers write keys into the windows registry. These keys are read at boot time. Other systems like Linux have a different way of writing configuration. As they use simple text files, it is usually not necessary to reboot.