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
its mostly a legacy thing a this point. programs install because programs have always installed, and this way they can be used by multiple users on different accounts.
some times there are changes that need to be made in the windows registry (like setting file name associations) and its helpful if those point somewhere owned by admin, but there is very little need for installation these days.
gennerally all installers do now adays is download the program (some times), and uncompress it into a folder. you can sometimes even get away with copying thay folder to a thumbdrive to make it portable.
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