Most of this 15 GB is composed of reserved and system files, whereas a space of 1 GB is taken up by the default games and apps that come pre-shipped with Windows 10. Even so, if what you have is a Windows laptop or tablet with a low amount of storage, even a small amount of savings matters.Ĭonsider the fact that a fresh install for Windows 10 takes up storage space of about 15 GB. It is true that Windows 10 has a relatively small footprint when compared to the older versions of Windows.