12 En! To install or uninstall the driver software, you need to be authorizedby the administrator of your computer. Log on as the administrator ofyour computer before proceeding with the installation.! If you connect this unit to your computer without installing the driversoftware first, an error may occur on your computer depending onthe system environment.! If installation of the driver software is interrupted after it has started,start the installation procedure over again from the beginning.Supported operating systemsWindows® 7 Home Premium/Professional/Ultimate32-bit version 164-bit version 11Windows Vista® Home Basic/Home Pre-mium/Business/Ultimate32-bit version 164-bit version 11Windows® XP Home Edition/Professional(SP2 or later) 32-bit version 11 When using a 64-bit version of Windows, the driver software can only be used for32-bit applications.1 Insert the included driver software CD-ROM into thecomputer’s CD drive.2 Once the CD-ROM’s menu is displayed, double-click[Pioneer_DDJ_Driver_XXXXX.exe].3 Proceed with installation according to the instructionson the screen.If [Windows Security] appears on the screen while the installation isin progress, click [Install this driver software anyway] and continuewith the installation.! When installing on Windows XPIf [Hardware Installation] appears on the screen while the installa-tion is in progress, click [Continue Anyway] and continue with theinstallation.! When the installation program is completed, a completion messageappears.Connecting this unit and computer1 Connect this unit to your computer via a USB cable.For details about connections, see Connections on page 13.2 Slide the [ON/OFF] switch to the [ON] side.Turn on the power of this unit.! The message [Installing device driver software] may appear whenthis unit is first connected to the computer or when it is connected toa different USB port on the computer. Wait a while until the message[Your devices are ready for use] appears.Adjusting the buffer sizeThis unit functions as an audio device conforming to the ASIOstandards.! If an application using this unit as the default audio device (DJsoftware, etc.) is running, quit that application before adjusting thebuffer size.Click the Windows [Start] menu>[AllPrograms]>[Pioneer]>[DDJ]>[DDJ ASIO Settings Utility].! If the buffer size is made large, drops in audio data (breaks in thesound) occur less easily, but the time lag due to the delay in thetransfer of the audio data (latency) increases.! If the kernel buffer number is made large, breaks in the sound occurless easily, but the time lag due to latency increases.The default value of the kernel buffer number is [3]. If breaks in thesound occur with this default value, set the kernel buffer number to[4]. In normal use, we recommend setting the kernel buffer numberto [2].Checking the version of the driversoftwareClick the Windows [Start] menu>[AllPrograms]>[Pioneer]>[DDJ]>[DDJ Version DisplayUtility].! You can check the firmware version of this unit on the screen.! The firmware version is not displayed when this unit is not connectedto the computer or when this unit and computer are not properlycommunicating.Checking the latest information on thedriver softwareFor the latest information on the driver software for exclusive use withthis unit, visit our website shown below.http://www.prodjnet.com/support/