

You will need to make sure that the new storage location has been formatted using NTFS before changing the save location to it. The files and folders for apps in the WindowsApps folder will be encrypted with EFS, so no one but your account is able to access the data. When a new Windows app from the Store is installed to the selected location, Windows 10 will create a WindowsApps folder at that location. Window will create the folders below on the root of the drive you selected to install new apps on. Any apps installed to "This PC" during this time will remain on "This PC", and will not be moved to the other location.

If you disconnect the drive you selected to install Windows apps to, then Windows will install new apps to This PC until the drive is connected again. If you disconnect the drive you selected to install Windows apps to, then any app installed to that drive will no longer work until the drive is connected again. Existing apps do not get moved to the new location by default, but you can select to move apps to another drive. Windows 10 will only install new apps to the currently selected location. You cannot use mapped network drives, and you can only use one location at a time to save apps to.

You can select to install new Windows apps to any internal or external drive, including SD cards, USB drives, and USB flash drives. In Windows 10, users can select where new Windows apps from the Store will install and save data to by default instead of on the default Windows "This PC (C)" drive location. How to Change Location where New Apps will Install and Save to in Windows 10
