Norton Removal Tool can be used to remove a failed Norton installation or a damaged product completely.
At last check, the Norton Removal Tool uninstalls all Norton products from 2003 on. Since then, it's not updated, so you might consider a generic uninstaller like IOBit Uninstaller to remove this and other programs completely and correctly from your computer.
Norton Bootable Recovery Tool is an ISO image to create a bootable rescue media on DVD or USB drive to start your computer and scan and remove any threats that caused the problem.
Symantec Ramnit Removal Tool helps remove this worm that spreads through removable drives adding a back door, stealing passwords and monitoring activities.