Based on Oreg (2006) this paper proposes a unified model of technology resistance including resistance as a behavior or behavioral intention (Kim and Kankanhalli 2009), a tri-dimensional construct of resistance to change (Piderit 2000) as an extension to Bhattacherjee and Hikmet (2007) and resistance as a personality trait (Oreg 2003) in order to enable a unified understand why people reject technologies. The evaluation of the model with a study of a new human resources information system shows that the resistance behavior of the researched 106 recruiters could be explained by their affective, behavioral and cognitive resistance to change as well as their individual personality trait resistance. Several implications for future research are discussed.