As hardware prices become cheaper and the performance of desktops continues to improve, the use of virtual machines is becoming increasingly widespread. Previously, Microsoft's Virtual PC (VPC) was used, but later VMware became more common. In VMware, SCSI mode isn't used as often, with IDE mode being more frequently utilized. However, when using VMware's custom options to create a new virtual machine and selecting a SCSI hard drive, you may encounter an issue where Windows XP installation prompts that it cannot find the hard drive. In this case, users should install the appropriate driver for the SCSI controller.