I noticed under device manager that I have an unknown device. I ran Driver Checker and it updated 9 drivers but cannot seem to update successfully 1 driver. I am not sure if the two issues are related or not. I searched the unknown device information on google and found a number of different and conflicting explanations. One site said the driver/device had to do with a Windows update and that it was for Vista but was showing up on XP systems and the device should be disabled. Other sites indicated that it had to do with HP PCs or other PCs (of which mine is not one of them)(I have a Fujitsu Lifebook T Series). Here is the info I got from Device Manager APCI\IFX0102 *IFX0102 The driver that Driver Checker cannot seem to update is Device Name: INTEL(R) 82801HEM/HBM SATA AHCI CONTROLLER Hardware ID: PCI\VEN - 8086Dev_2829 The D on the last line should be underlined (at least it is in Driver Checkers identification of the device. Is it likely that the 2 issues are one and the same? I suspect not because Driver Checker has been able to identify the outdated driver, it just cannot update it. Given that the PC seems to be running fine should I just disable the unknown device in Device Manager? One more thing, I tried uninstalling the driver in Device Manager and when I rebooted the PC I got a message that new hardware had been found. I think it said something about Intel but I could be wrong about this. The device was not able to be installed and when I went to Device Manager the unknown device was back again. Any suggestions? PS: Oh yes, I tried unplugging all external devices and rebooting but the unknown device still showed up in Device Manager. This trouble shooting was recommended in a copy of the Langa Report (Fred Langa).