家用个人电脑通常会花大部分的时间闲逛,不使用处理器的能力或使用硬盘。它不应该“响声”如此之长,除非是在努力工作。原因不明的响声通常是由于过度使用中央处理器(CPU),这会带来高温和噪声,减缓甚至停止任何你想要运行的程序。因此需要一个好主意找到原因并消除它。为此意味着你自己深入windows的内部过程,但是知道怎样应用它却是有用的。 您可以使用相同的方法与程序,而不仅仅是诺顿。否则,如果这个答案似乎很难得到,跳到最后一段。
当然，你应该期待诺顿在您的系统上提出的重大要求当它检查你的硬盘的恶意软件时候,但它不应该在你在的时候这样做。诺顿网络安全的最新版本(从2009年起)只应该在“系统空闲时间”采取行动,也就是当你的电脑没有在使用的时候。你可以点击CPU的使用量从而调整诺顿的值。所以你可以设置一个长的时间间隔，但是我并不期望这样能解决问题。
但是，在我们开始之前，你需要让你的电脑时刻更新，因为你可能需要试图解决已经处理掉的问题。进入windows系统，更新站点（在start菜单的接近顶端的地方会有一个链接）,并且确保你已经更新了重要的安装内容。再一个，打开Norton，点击Support，并且选择新版本的Check，如果你不想有任何更新的话，你需要安装一个2011年的版本，然后使用一个最新的鲜明特征的病毒检测系统。最终，将其根植于你的电脑之中，看看电脑的响声是否消失。如果没有，那么你需要重新安装一个新的系统。
A home PC will normally spend most of its time idling along, without using much of the processor's power or accessing the hard drive. It shouldn't "whirr away" for very long, unless it's working hard. Unexplained whirring is usually due to excessive use of the central processing unit (CPU), which creates heat and noise, and slows down or even stops any programs that you actually want to run. It's therefore a good idea to find the cause and eliminate it. To do this yourself means delving into Windows' internal processes, but it's useful to know how. You can use the same approach with any program, not just Norton. Otherwise, if this answer seems hard going, skip to the last paragraph.
Of course, you should expect Norton to make heavy demands on your system when it is checking your hard drive for malware, but it shouldn't be doing that while you're around. Recent versions of Norton Internet Security (from about 2009 onwards) are only supposed to kick into action during "system idle time", when your PC is not in use. You can adjust this value in Norton by clicking on CPU usage, so you could try setting a longer time interval, but I wouldn't expect this to solve the problem.
Before we start, however, you should get your PC up-to-date, because you may be trying to solve a problem that has already been fixed. Go to the Windows updat site (there's a link near the top of the Start menu) and make sure you have all the critical updates installed. Next, open Norton, click on Support, and selec New Version Check. Install the 2011 version if you don't have it, plus any updates, then run a virus check using the latest signatures. Finally, reboot your PC to see if the whirring has gone away. If not, you'll at least be starting with a fresh system.
