Address remapping is performed in a multi-booting system by storing a default operating system ("OS") and a non-default OS at first and second address regions of a memory medium, respectively, and receiving a selection indicative of the non-default OS. A request to access data at an intended address within the first address region is received, and a remapped address within the second address region is calculated based upon the selection. The request to access data at the intended address is changed to a request to access data at the remapped address within the second address region using a remapping application.