Select Start , enter device manager. Then, select Device Manager from the search results. Was this information helpful?

MMC cannot open the file C:\WINDOWS\system32\devmgmt.msc. This may be because the file does not exist, is not the MMC console, or was created by a later version of MMC.

Type devmgmt.msc, and then click OK. Device Manager opens. In Device Manager, click your computer so that it is highlighted. Click Action, and then click Scan for hardware changes. Check the USB device to see whether it is working. If scanning for hardware changes fixed the problem, you are finished.

For Windows 7 and earlier, start with step 1: Accessories, and then click Command Prompt. For Windows 8 and later: From Start, search for device manager, and select Device Manager from the search results. Troubleshoot the devices and drivers in Device Manager.

Type devmgmt.msc in the Run dialog box, then press Enter. If you are prompted for an administrator password or for a confirmation, type the password, or select Allow. In Device Manager, expand DVD/CD-ROM drives, right-click the CD and DVD devices, and then select Uninstall.

Update drivers through Device Manager in Windows. Tip: The best way to get driver updates in Windows is automatically using Windows Update. For more information, see Automatically get recommended drivers and updates for your hardware.

To do this, click Start, click Run, type devmgmt.msc in the Run window, and then click OK. Expand the Universal Serial Bus Controllers section at the bottom of the device manager window.

In this article, we will help you find your error code and suggest what you might try to correct the error. Follow the recommended resolutions for that error code. You may also click the specific error code to get more detail information. Note: This article doesn't contain all error codes generated by Device Manager.

The icons in Device Manager are listed alphabetically, and the one you're looking for will be next to the blue Bluetooth logo. Select the arrow on the left of the Bluetooth list to view all adapters or radios. Was this information helpful?

选择“ 开始 ”，输入 “设备管理器 ”。 然后，从搜索结果中选择 “设备管理器 ”。 此信息是否有帮助?