主题：机子慢极了 -- nan

我开始也觉得很像硬件问题，如果真是起不来，就肯定往主板和内存上想了。 可是它能起，起来后什么问题也没有了，这机子我使用2年了，程序运行速度大概有数。

起来后，我在用viruscan扫盘的时候，我就发现它扫完ＢＯＯＴ　ＳＥＣＴＯＲ，就只扫Ｇ盘，很奇怪，我改了设置也没用，不过没有发现病毒我就没有在意，Ｇ盘是什么？我查了一下是早上插的一个ｆｌａｓｈ　ｍｅｍｏｒｙ。做完ｆｉｒｅｗａｌｌ的ｕｐｄａｔｅ后又要启动了，要等２０分钟，我就在另外一台机子上GOOLE了一下这个问题，还不少，进去随便扫了一眼，ＵＳＢｉｓｓｕｅ的标题叫我想起了Ｇ盘，随手拔下，ＸＰ一下出现在屏幕上，哈哈。　

（实际上ＵＳＢ　ｉｓｓｕｅ：

USB Connections As can be seen from remarks in the Misc. Hardware Issues section below, several different USB-related issues can impact shutdown. One of the most concrete examples was a “reboot on shutdown” problem contributed by correspondent Rick Bross. If his several USB devices (PDA cradle, flash card reader, etc) were plugged into the motherboard’s USB ports, his computer would reboot on an attempted shutdown; but when, instead, he plugged them into an external USB 2.0 hub, shutdown went just fine. (This was with Win XP Professional SP1 on a Supermicro X5DAE dual Xeon motherboard. The same devices plugged into an Asus A7M-266D dual AMD 2000MP system on the same OS worked without problem.)

好像和我的问题还有区别，这个Ｕ盘使用了一段时间没问题，可能它有Ｂｕｇ，也可能是ＸＰ的，也可能是我在Ｕ盘上使用的带密码的ＷＯＲＤ文件，谁知道呢，不过确实很有意思。