Shulou(Shulou.com)06/02 Report--

I. failure phenomenon

When the new dell3046 dell3050 host installs the operating system, the USB keyboard and mouse can be used normally in BIOS and pe. After the installation is successful, after entering the windows login mode, the USB keyboard and mouse have no response.

Second, the processing process

1. Because of using wds to install the system, I mistakenly thought that it was the problem of wds itself. I tried to check every link in WDS, but no exception was found.

two。 Try to install the pure version of the system on the host. After the installation is complete, the USB device still cannot be used.

3. Backup the host with its own driver, and use dism to seal the driver into the wim image file. After installing the system, the failure remains the same.

4. Install the pure version of the system on the host, and the disk cannot be found on the U disk in the installation interface.

5. Through the above links, the fault analysis is that the system contains the correct usb3.0 driver, download the latest version of the driver from the Internet and install it to PC, and the fault remains the same.

6. Internet search, found that encountered a similar situation, netizens reported that the chip driver and usb driver conflict, it is recommended to upgrade the chip and USB driver to the latest version.

Https://www.reddit.com/r/sysadmin/comments/4tcg0b/problems_with_dell_optiplex_7040_and_usb_drivers/

III. Solutions

Download the latest chip driver and the latest USB3.0 driver from the inter official, replace the old version of the chip and usb driver in the mdt console, and then reinstall the system to troubleshoot.

Inter chip driver: https://downloadcenter.intel.com/zh-cn/download/20775/-INF-?product=98455

Usb3.0 driver: https://downloadcenter.intel.com/zh-cn/download/22824/-USB-3-0-eXtensible-8-9-100-C220-C610-

IV. Summary and reflection

It is important to analyze ideas.

1. Confirm the fault phenomenon

List the fault phenomena, what the situation is and what the performance is.

The fault phenomenon is: after the system installation is completed, the USB device cannot be used properly, and it is normal in BIOS and PE.

two。 Determine the point and scope of the failure

The purpose of delineating the scope of the fault is to reduce unnecessary analysis and troubleshooting work, analyze within the scope, and first delineate a relatively small range.

In fact, at the beginning of this failure, we can already know that it is caused by the driver, so the fault should be limited to the driver problem of the PC, and the fault analysis should not be related to the WDS server.

3. Verification fault determination

Verify the determined fault point and confirm that the fault point is correct, based on the fact that the fault phenomenon can be reproduced.

4. Enumerate the causes of failure

Enumerate all the possibilities for the possible causes of the fault point

5. Test the solution according to the cause of the failure

6. Repeat steps 1 through 6 until fault handling is complete.

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