If you are using LabVIEW 5.1.2 Real-Time (RT), launch Remote System Explorer and select Disks >> Create Format Hard Drive Disk. If you have LabVIEW 6 RT, launch the Measurement and Automation Explorer (MAX) and select Tools >> RT PXI Disk Utilities >> Create Format Hard Drive Disk (LabVIEW RT 6 has not be released yet). Once you have created the disk, boot the PXI controller with the Format Hard Drive Disk, and this will format the PXI's hard drive and install the real-time OS boot loader. Now you can reboot the PXI without a floppy disk and configure the PXI using Remote System Explorer or MAX. Be aware that this will remove all information from the hard drive, including other operating systems.