“After the pre-installation process is complete, Travelers can experience the new version content faster once the update maintenance period is finished.”
And as you might expect, by pre-loading the new big Genshin Impact update, you will reduce the time that the game spends updating resources the first time you enter Version 1.3, even if you did not fully complete pre-installation.
To get ready to pre-load later today, here are the instructions being shared by the development team:
PC:
After the pre-installation function is available, you must first update the Genshin Impact Launcher. After updating the launcher, a "Game Pre-Installation" button will appear to the left of the "Launch" button. Click "Game Pre-Installation" to download the latest game resources.