


In my case, the VaultCache is not even on the PC anymore but on my NAS at Y: (\\NAS-Cala) -) With a symbolic link, we can map a folder to a completely different location, even a network drive. Files are always copied from it to the project folders. For performance reasons, I have UE4 installed on my start-up SSD drive and my vault contains 50GB of data which isn’t used “directly”.

It can’t be relocated by settings or during installation yet (UE 4.7.6). The VaultCache is always located at /EpicGames/Launcher/VaultCache/. UE4 then creates a copy of theses files inside your project folder. You import them to your projects or start a new one with them. Market Place downloads and learning sample projects are stored in your Unreal Engine 4 Vault Cache directory and are being keep there as unchanged original files.
