In windows, most software would need an installing before usage yet some can be opened directly. For example, Blender is a 3D software that can be downloaded in two forms: one that can be installed and the other in “portable” form that can be directly used even when it’s inside a flashdisk. How can this be so? Why not all software require installation or not?
In: Technology
More complex programs will allow you to save some settings like take a web browser. It can store bookmarks, passwords , you can even customize the way it looks. To do this it most likely writes settings to some file on your computer that stores these settings
The one benefit of this is when a new version is installed , all those settings can carry over to the new version
It can even change the OS settings, if you install a web browser , the web browser can change some OS settings basically saying “If you open up a web link, use firefox (or chrome or safari) to open it” this requires some settings in the OS to be updated
Portable software has a harder time with this, some may even be able to save bookmarks or something but when a new version is downloaded since nothing is “saved” or installed on your computer you may lose these settings if you download a new version
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