We study a general continuous-time random walk (CTRW), by including non-Markovian cases and Lévy flights, under complete stochastic resetting to the initial position with an arbitrary law, which can be power-lawed as well as Poissonian. We provide three linked results. First, we show that the random walk under stochastic resetting is a CTRW with the same jump-size distribution of the non-reset original CTRW but with a different counting process. Later, we derive the condition for a CTRW with stochastic resetting to be a meaningful displacement process at large elapsed times, i.e. the probability to jump to any site is higher than the probability to be reset to the initial position, and we call this condition the zero-law for stochastic resetting. This law joins with the other two laws for reset random walks concerning the existence and the non-existence of a non-equilibrium stationary state (NESS). Finally, we derive master equations for CTRWs when the resetting law is a completely monotone function. The talk is based on: Colantoni & Pagnini, Proc. R. Soc. A, 481, 20250641 (2025). This seminar is scheduled in the framework of the PRIN 2022 project "The mathematics and mechanics of nonlinear wave propagation in solids" (CUP J53D23002350006, MUR code: 2022P5R22A_003; local team responsible investigator: Prof. Mentrelli).