User Account Control (UAC) is one of the key security mechanisms introduced in Vista. In the past, the default account as an administrator. Following the principle of least privilege , the default Vista account runs with limited access, and Vista detects when something requires "administrator prompts...

User Account Control (UAC) is one of the key security mechanisms introduced in Vista. In the past, the default account as an administrator. Following the principle of least privilege , the default Vista account runs with limited access, and Vista detects when something requires "administrator prompts...