# Enabling DMA mode - Windows XP Professional Open "Device Manager". Method I: Right-click the "My computer" icon; In the drop-down menu, left-click "Management"; Select "Device manager". Method II: Select "Control panel" from the start menu; Select "System"; Select "Devices"; Select "Device manager". Open "IDE ATA/ATAPI/SATA" controller; Open primary "IDE ATA/ATAPI/SATA" controller; Select DMA as transfer mode if available for device 0 as well as device 1 if available; If DMA is unavailable, it may be necessary to obtain and install a different driver for your hardware, either from your hardware vendor or the Microsoft website; Repeat the above for the secondary "IDE ATA/ATAPI/SATA" controller. Once done, restart the computer, then verify that DMA is, in fact, enabled. If not, it may be necessary to obtain and install a different driver for your hardware, either from your hardware vendor or the Microsoft website.