In Windows 10, applications that are downloaded from the Windows Store are automatically installed in the WindowsApps folder located in the system partition. However, if you would prefer that your apps be installed on another drive, Windows 10 provides a hassle free method to choose your preferred location to install apps downloaded from the Windows Store.
Install Windows Store Apps on Another Disk or Partition
Click on Start > Settings > System > Storage:
Go to the Save Locations section, click on the drop down menu below New apps will save to and then select the desired partition or drive: