I have a forum post on manually updating the AMD PCI Express (3GIO) Filter which can be found here. http://forums.guru3d.com/showthread.php?t=373501 The AMD PCI Express (3GIO) Filter is a driver that is left over from older Catalyst drivers. I have recently discovered that the procedure that I have listed updates the AMD PCI Express (3GIO) Filter to the PCI Bus Driver but the procedure does not uninstall the actually driver. In the worst case scenario, the AMD PCI Express (3GIO) Filter may still be running but not present in the Device Manager list. The procedure to detect and remove the AMD PCI Express (3GIO) Filter driver is as follows: Step 1) First verify that the following files are present in your Windows Installation: AtiPcie.sys AtiPcie64.sys The above two files are located in the following folder location: Code: C:\Windows\System32\drivers If you do not find either of these two files, you do not need to proceed to the next step. Step 2) Now that you have identified that either or both of these files are present, we will proceed to remove the registry entry that references these files. We are going to first disable the driver. A reboot is required and then you will be able to remove the files and the registry entry. To disable the driver, open registry editor and navigate to : Code: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\AtiPcie Once you have found this location which is known as a " Key ", in the right hand pane, find in the Name column: " Start " with the Type column : " REG_DWORD " will be present with a value of " 0 ". Double click on " Start " and dialog box will open. Change the value to " 4 ". This change will disable the driver from running on Windows start. Click OK. Close Registry editor and reboot the computer. Step 3) Navigate to the files I have indicated above and delete the file(s). To delete the registry key, open a Administrator command prompt and type the following: Code: sc delete AtiPcie There will be a dialoge box that will confirm the key has been deleted. A reboot is not required but recommended at this time. You have now disabled and removed the AMD PCI Express (3GIO) Filter. As always, make a system restore point before you perform any driver updating or removal. I will monitoring this thread for responses.