Article ID : S500016573 / Last Modified : 11/04/2018

Why can't the USB devices connected to the VAIO computer be recognized?

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The USB device connected cannot be recognized sometimes even if the device is connected to either of the 2 available USB ports.

To resolve this symptom, please install Microsoft patch USB Rollup Package (KB822603).

You can download this patch by performing a Windows Update for your computer or visit you can also visit the Microsoft website for the following article.

Article ID: 822603
Title: Availability of the Windows XP SP1 USB 1.1 and 2.0 Update

After installation has completed, restart the computer and carry out the following procedure to check if the installation was successful.

1. Click Start, click Control Panel and click Add or Remove Programs.
2. Check to see if any of the following programs has been added. If they are added, the installation is successful.
- Windows XP Hotfix (SP2) Q822603
- Windows XP Hotfix - KB822603