Use entire drive. As the title says, Fedora would clear off all the data on your hard drive and use the complete space for its installation. But beware that you could lose all data on your drive . Use free space. If you have unallotted space on your hard drive, all that space is used for Fedora installation . Replace existing Linux System. If you are sure that you are running another Linux distribution and are quite keen to remove it, use this option and click next. Shrink current system. This option allows you to shrink any of the partitions so as to install Fedora. Create Custom Layout. Allows you to create and delete partitions manually. (Experienced users only. )