The process of unpacking and saving to mass storage (usually the computer or console hard disk) of compressed software files (so-called installer). Installation is required before the program is started for the first time, including video games. The data remains in storage until you delete it.

When installing a video game, users usually have the option of choosing a number of options (e.g., between a typical and full installation, including additional materials on the installation media), the target partition and folder, generating quick launch icons, etc. Some publishers additionally require that this process took place using an active internet connection (e.g. to verify the authenticity of a copy of the game) or to register the product on the website.

The opposite of installation is the uninstall process that allows you to remove most files related to a specific program and its components from storage.