Lors de la bataille de Ryloth, il arrêta Wat Tambor, qui retenait prisonniers les Twi'leks. Mace was skeptical of Qui-Gon's claims, but they agreed to test him. At first, Mace respected and admired Palpatine for his clean slate. He was shown to think little of Qui-Gon's opinions and beliefs; for example, he was skeptical of both Qui-Gon's theory that the Sith had returned and his insistence that young Anakin Skywalker was the prophesied "Chosen One". Le jeune Anakin Skywalker, désespéré, tranche la main de Maître Windu qui, terrassé par la douleur et déstabilisé par la volte-face de l'Élu, subit la puissance des éclairs de Palpatine de plein fouet, est projeté par la fenêtre du bureau du Chancelier et fait une chute de plusieurs centaines de mètres avant de s'écraser. Mace was later informed by Anakin that Palpatine was really the Dark Lord of the Sith, Darth Sidious. Windu confronted the boy briefly before he was marched off to prison, only to discover his hatred of the Jedi was as strong as ever. Windu and Anakin Skywalker made a visit to the Endurance later in the war, where they mentored a group of young clone cadets. Ils ne crurent pas à cette déclaration, mais surveillèrent Palpatine de plus près. Affiliation: Star Wars Stories: Rogue One • Solo • Untitled Star Wars film Boba détruisit la salle des machines avant de s'enfuir. However, he held his arrogance in check for the most part; he was humble towards individuals he believed were superior to him, such as Yoda, and treated most civilians and fellow Jedi with respect. « Mace Windu » expliqué aux enfants par Vikidia, l’encyclopédie junior.
Mace later attended Qui-Gon's funeral, along with Yoda.
All Jedi were surrounded, with several casualties, and were given the option of surrender, but Mace spoke for the others and refused. As a Jedi, Mace was intelligent, wise and perceptive, however, despite this, like most Jedi Masters, he was somewhat arrogant, self-righteous and short-sighted; as he was very overconfident in his own abilities and saw very little fault in the Jedi or the Republic, believing they were always in the right and everyone else was in the wrong, he was prideful, known to be outspoken, occasionally sarcastic and was largely obstinate to anything that contradicted his views.
Mace firmly believed in the role of the Jedi as the Republic's servants rather than its masters, and displayed a fierce dedication to the Jedi Order and the Galactic Republic alike. It brought him dangerously close to the Dark Side, as Windu created the form as an avenue for his own dark impulses. During the Clone Wars, the Council became increasingly suspicious of Chancellor Palpatine and his growing power in the Senate. Windu held the position of second chair on the Jedi High Council and was considered to rival Master Yoda in both power and skill.