Microsoft Vista users fed up with the incessant security prompts from the operating system’s “user access control” feature can now spend less time clicking on the pop-ups. Symantec Corp. has released a free tool that adds a simple “don’t ask me again” option to each prompt. The UAC feature, which throws up a “Windows needs your permission to continue” prompt each time Vista users install a program or make minor changes to system settings within Windows, was designed to keep users safer by warning them about downloads or malicious software trying to make changes that the user did not request. It was also an effort by Microsoft to force software developers to write programs that don’t need all-powerful administrator access to function properly. But some Vista users find the prompts so annoying that they turn the UAC feature off entirely. Part of the trouble is that there is no easy