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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.