
Originally Posted by
defender_1611
A portable install means you can copy the folder, where the program is installed, to a storage device (like a USB flash drive or HDD), and then you can run the program on another computer without having to run an installer.
On the other hand, you cannot just copy the regular install folder of a program to another computer. It might work with some programs, but it's not recommended, because there are other types of files and registry entries too, which the program uses. These are not copied over just by copying the install folder, and thus the program may not run properly elsewhere.