Operating systems generally do not offer the possibility to uninstall themselves. If for any reason you want to uninstall Mandrake Linux, you can do so.
The uninstallation process consists of two steps:
Delete all partitions related to Mandrake Linux on your hard drive (usually partitions hosting ext3 file systems and the swap partition) and –– optionally –– replace them by a single FAT partition using DiskDrake.
Uninstall the boot loader (generally LILO) from the Master Boot Record (MBR). To do so, boot under DOS and run the fdisk /mbr command.
If you have another OS, please refer to its documentation to determine how to regenerate the master boot record with it.