GParted 35 alternatives | Website
First, you may need to format or edit the partitions on your disk. GParted is probably the most reliable and well-known tool to do that on Linux. It's a GTK+ front-end to GNU Parted and the official GNOME Partition Editor application. It is used for creating, deleting, resizing, moving, checking, and copying partitions and the file systems on them. This is useful for creating space for new operating systems, reorganizing disk usage, copying data residing on hard disks, and mirroring one partition with another (disk imaging).
