PC manufacturers, usually fill your machines with pre-installed software to earn extra money. So, although the manufacturer says the product offers 32GB of free storage, it is already 20% or more full at the time of purchase. Windows 10 version 1703 introduces a new configuration service provider (CSP) called CleanPC CSP, which can help system administrators remove user-installed applications and preinstalled applications from their Windows system.
Configuration Service Provider (CSP) is an interface for reading, setting, changing or deleting configuration settings on the device. These parameters are assigned to registry keys or files.