USB Unknown Device Drive Issue, Not Working, Recognized or Connected Error After Upgrading and Installing Vista SP1未知的USB設備驅動程序問題，而不是工作，承認或連接錯誤後，升級和安裝Vista的SP1的

After installing Windows Vista SP1, or more specifically, one of the prerequisite update for the service pack, KB938371, that just been re-released early April after Microsoft claimed already fixed an endless reboot loop issue, USB device may stop working.之後，安裝Windows Vista SP1中，或更具體地說，其中一個先決條件更新的Service Pack ， kb938371 ，剛剛重新發布的4月上旬後，微軟聲稱已經固定層出不窮，重新啟動迴路的問題， USB設備可能停止工作。 Such USB-based devices involve broad categories, such as mice (mouse), keyboard, external or portable hard disk, USB flash drive, card reader and etc.這種基於USB的裝置，涉及廣泛的分類，如小鼠（滑鼠） ，鍵盤，外部或便攜式硬盤， USB快閃磁碟機，讀卡器等。

In slight different to another USB problem where symptom is在略有不同的另一個USB的問題，如症狀是 Vista unable to find driver for USB device Vista中無法找到驅動程序的USB設備 automatically, the USB connected device not working issue cannot be solved by simply removing and then reinstalling the drivers.自動時， USB連接的裝置不工作問題不能得到解決，只需刪除，然後重新安裝驅動程序。 When plug in an USB device, the USB device is either not detected, not recognized, or not connected.當堵塞在一個USB設備， USB設備是不是沒有檢測到，不承認，或沒有連接。 If Windows Vista tries to install the driver, the USB device is listed as “Unknown Device”, and no driver will be found to install the device, or drive installation fails.如果Windows Vista嘗試安裝驅動程序， USB設備被列為“未知設備” ，並沒有司機會被發現安裝設備，或驅動器的安裝失敗。 So the USB device cannot be used as Windows will always ask for driver.因此， USB設備不能被用來作為Windows將始終要求司機。

Microsoft acknowledges the issue with USB device after installing KB938371 with statement that “We are aware of concerns that a recent Microsoft update may be causing problems with USB devices, according to微軟承認的問題，與USB設備安裝完畢後kb938371與聲明說： “我們都知道的關注，最近一項Microsoft Update將可能造成的問題，與USB設備，根據 TheRegister theregister . 。 We are investigating the matter, and at this time, do not have any information to share.” So there is no official fix from Microsoft yet, other than asking users to check for updated or latest drivers from manufacturer’s websites.我們現正調查此事，並在這個時候，不要有任何資料分享“ ，所以沒有正式的修復從Microsoft ，但以外的其他要求的用戶，以檢查更新或最新的驅動程序從製造商的網站。

Although Microsoft hasn’t publish any resolution for USB not working issue after installing KB938271 or Windows Vista SP1 (which must also installed the affected prerequisite update), but雖然微軟還沒有發布任何決議的USB沒有工作的問題後，安裝kb938271或Windows Vista SP1中（其中還必須安裝了受影響的前提更新） ，但 TechNet forum TechNet的論壇 users have manage to fix or resolve the issue with a workaround, which is reported caused by Human Interface Device in combination with update KB938371.用戶管理，以修正或解決問題的一個可行方案，這是報導所造成的人性化介面裝置在結合更新kb938371 。

1. Go to Control Panel , then go to System and Maintenance , then go to System , and click on Device Manager .進入控制面板 ，然後轉到系統及保養工程業 ，然後轉到系統 ，並點擊設備管理器 。
2. In the Device Manager, expand the tree of Human Interface Devices (HID).在設備管理器，展開樹狀結構的人性化介面裝置 （藏） 。
3. Update the driver for all Unknown Device .更新驅動程序為所有未知設備 。
4. Windows Vista won’t be able to retrieve any driver online, as expected. Windows Vista將無法找回任何驅動程式的線上，符合市場預期。 So when prompted for how to search for driver software, select Browse my computer for driver software .因此，當提示如何搜索驅動軟件，選擇瀏覽我的電腦為驅動軟件 。
5. Enter or browse to C:\Windows\winsxs as the driver location and press the Next button.輸入或瀏覽到C ： \的Windows \ winsxs作為司機的位置，並按下下一步按鈕。
6. If the system pops up a dialog warning about unsigned driver, allow the driver installation to continue.如果系統彈出一個對話框，警告未簽名驅動程序，允許驅動程序的安裝繼續進行。
7. Windows Vista with SP1 will install the appropriate driver for the device, and the USB device should be able to work properly again.與Windows Vista的SP1也將安裝適當的驅動程序為設備， USB設備應能正常工作。

Note: If the driver cannot be installed, try to boot into Safe Mode and repeat above steps again.注意：如果驅動程序無法安裝，請試著啟動到安全模式，並重複上述步驟一次。

IMPORTANT : You're reading a machine translated page which is provided "as is" without warranty. 重要說明：您正在閱讀的機器翻譯網頁是“按原樣”提供的擔保。 Unlike human translation, machine translation does not understand the grammar, semantics, syntax, idioms of natural language, thus often produce inaccurate and low quality text which is misleading and incomprehensible.不像人類翻譯，機器翻譯不明白的語法，語義，語法，成語自然語言，因此，往往產生不準確的和低品質的文字，是具誤導性的和難以理解的。 Thus, please refer to因此，請參閱 original English article原來的英語文章 when in doubt.有疑問時。

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