Install Promise Ultra100 Controller Driver manually. 1. Press "Start" button. 2. Move to "Settings" and select "Control Panel". 3. Double click on "System" icon and Select "Device Manager" button. 4. Double click the "PCI Mass Storage Controller" node. 5. Select "Reinstall Driver" button to Update driver. 6. Select "Specify the location of the driver" and Click Next. 7. Select "Search for a better driver..." and click "Specify a loction:" 8. Follow the instruction to insert your 1stUtilities CD to install the driver. Browse for Folder and Click OK. 9. Click Next Completing the Update Device Driver Wizard. then Click on the "Finish" button and Restart the system.