Half of IT managers who are either testing or installing Microsoft Windows Vista this year said the operating system's security enhancements are the primary driver fueling the move, according to a new study. Amplitude Research's fourth annual Enterprise Security Survey, which was commissioned by VanDyke Software, surveyed 300 IT professionals -- 217 of whom are contemplating or moving to Vista. Of those looking to Microsoft's newest, and highly touted, operating system, 14% said they are eager to use User Account Control (UAC), which is a new security feature designed to limit individual machines' administrative permissions in order to ward off malware attacks.

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