1. An improved method for installing an operating system, the method combining at least the steps of choosing a computer system storage device to receive a copy of the operating system and placing a copy of the operating system in a destination partition on the chosen storage device, wherein the improvement comprises the steps of: selecting an IBM-compatible partition located on the chosen storage device, the selected partition having two edges, the selected partition containing a file system which supports multi-sector clusters; and moving at least one edge of the selected partition without destroying user data in order to make a modified partition by relocating user data within the selected partition and shrinking the selected partition, thereby increasing the free space not claimed by any partition.