At the nanoscale, water exhibits remarkable deviations from bulk behavior. When confined between solid surfaces, it forms ordered hydration layers that display viscoelastic and even yield-stress properties. Previous dynamic atomic force microscopy (AFM) studies revealed a strong dependence of these behaviors on surface hydrophilicity, suggesting that interfacial water undergoes a confinement-induced slowdown reminiscent of glassy or supercooled dynamics. The goal of this internship is to deepen our understanding of the nonlinear rheology of confined water and to identify the microscopic mechanisms governing the transition from fluid-like to solid-like behavior under nanometric confinement.