Enable DMA

DMA stands for Direct Memory Access, a capability in modern computers that allows peripheral devices to send data to the motherboard's memory without intervention from the CPU. The DMA controllers are special hardware - now embedded into the chip in modern integrated processors - that manage the data transfers and arbitrate access to the system bus. To enable DMA, follow this steps :

1. Right-click on My Computer, select Properties
2. Select the Hardware tab
3. Click the Device Manager button
4. Double-click IDE/ATAPI controllers
5. Double-click on the Primary IDE Channel
6. Click on the Advanced Settings tab (as shown in figure) The tab may or may not be available for each option. It is only available in Primary and Secondary Channels.
7. Set the Transfer Mode to "DMA if Available" both for Device 1 and 0
8. Click OK
9. Perform the same operation for other items in the list, if applicable.