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HP Compaq 8200 Elite and 6200 Pro Desktop PCs - Several Unknown Devices in Device Manager After Installing Windows XP Service Pack 3
After installing Windows XP Service Pack 3, Device Manager displays one or more unknown devices under Other Devices.
Download and install the latest driver for each device from the HP Support and Driver Web site :
NOTE: * Drivers subject to change. If installing the typical driver download does not resolve the issue, download a different driver within the category.
** Reboot the computer after installing the driver.
*** The driver does not install automatically. Manually install the driver by navigating to the SoftPAQ download location and then install the driver.
**** If installing the Infineon TPM driver does not resolve the issue, make sure all other system drivers are up-to-date.