<p>This investigation incorporates a comprehensive correlation of microstructure, texture, High Angle Grain Boundaries, and corrosion resistance of AA7075 alloy Friction Stir Welds. Scanning Electron micrographs revealed deformed grains, second phase particles, and Precipitation Free Zones in AA7075.Transmission Electron micrographs divulged high fraction of PFZs and spherical/needle like precipitates, and coarse precipitates in AA7075, more spherical precipitates in Weld Nugget, and over aged precipitates, and PFZs in Heat Affected Zone. SEM-EBSD analysis revealed that the fraction of High Angle Grain Boundaries in AA7075 was 18% that increases to 55.3% in Weld Nugget higher than Thermo Mechanically Affected Zone and HAZ. Crystallographic texture was stronger and fraction of misorientation of grains &lt; 5^° was higher in AA7075 than welds. Vickers hardness test results exhibited more hardness in WN due to fine recrystallized grains, an abrupt loss in TMAZ due to coarse grains, and more PFZs and over aged precipitates decline the hardness in HAZ. Tension test results demonstrated Yield Strength, Ultimate Tensile Strength were lower in weld joint than AA7075. Pitting corrosion resistance of WN was superior to AA7075. Inter granular fracture was observed in HAZ (Retreating Side) instead of HAZ (Advancing Side) as per literature because HAZ (Advancing Side) has strong texture and high pitting potential value at 120&#xa0;mm/min welding speed and 700&#xa0;r/min tool speed. This study results demonstrated that the corrosion resistance decreases as HAGBs decreases, and misorientation of grains &lt; 5^° increases as the distance moves away from weld nugget in Friction Stir welds on Retreating Side.</p>