update all available windows updates, including SP1

Check your process and see which one uses more resource

XP本身的问题很难彻底解决的 好像把C盘换成NTFS格式能缓解一下

some causes of this problem1. Failure to keep with with Windows Update 2. Virus/Worm/Trojan infection 3. Verisign CRL update failure

some causes of this problem1. Failure to keep with with Windows Update 2. Virus/Worm/Trojan infection 3. Verisign CRL update failure

前面二条好像都不是，第三条不懂，如何检测及修正呢？

try to open the task managerand observer which process is holding up the resources and let's see what we can do about that information

the information from task manager:Applications: 1. 华新网 -- 华新论坛 Microsoft Internet Explore Running 2. 华新社区- 软硬兼师 Microsoft Internet Explore Running Process: 1. taskmagr.exe cpu: o5 2. System Idle Process cpu: 95 ... (the resr are all zero) any helpfulinformaton?

it will be goodto do a screen capture when you encounter the slow-response on the task manager. specifically, you want to know which process is hogging 100% CPU

it's probably not because of low system resourceswhen i encountered this kind of problems, the CPU utilization was usually less than 5% and memory, I/O activities were all normal it seems that explorer.exe is just not redrawing the desktop, including the taskbar typical case is that when the user clicks a button on the quick launch bar, that particular button caves in and remains in that status for 30 seconds. ending and restarting explorer.exe will solve the problem once, but same thing occurs again very soon.

the thing isi've never experienced this problem on my own computer. the difference is only probably that I update windows and norton antivirus, plus sometime do a around of spyware scan. those things are pretty normal... having said that, I've seen such problems on other computer. the funny thing is mouse action are still very responsive, you can click-and-drag, you can do a lot of double-clicking. and anything you run in command prompt are ok too. apparently, there does not seem to be any deadlock or livelock at all.