Malware Protection Center says 23% of Windows 7 and Vista PCs infected by rootkit and worm malware were on which UAC had been disabled. Malware writers have started attacking UAC because it offers advantages in avoiding detection. Microsoft says a minority of users do not want UAC prompts to interrupt their use of the PC. Users should keep UAC turned on and check for programs that might be interfering with it, Microsoft says. The message remains clear – even in its imperfect state, users should keep it turned on.”]