Start over (4)
(Other definitions for reboot that I've seen before include "Recover from crash" , "Re-start up a computer's initial program" , "Start notebook again" , "Start up a computer's initial program again" , "Start (computer) again" .)
(Other definitions for redo that I've seen before include "Fashion again" , "Decorate (eg a room) again" , "Carry out again" , "Redecorate or repeat action" , "Perform (action) again" .)
(Other definitions for reset that I've seen before include "Replace, resettle or put back again" , "Restore to required state" , "Adjust (eg clock, tuning)" , "Changed reading" , "Restore to the initial readings" .)