KERNEL_DATA_INPAGE_ERROR

I got a bluescreen a few times on my computer (a Compaq Presario V2665US) with the message "KERNEL_DATA_INPAGE_ERROR". I still don't know why it happened. Can be several reasons. But after a few times that happened, the Windows XP operating system began to be very slow. It was specially slow when accessing the hard disk drive. So I figured out that DMA was disabled. DMA is a feature that makes data between hard disk drive and computer's RAM to be exchanged without having to pass by the CPU.

In order to put DMA to work again you have to uninstall the primary IDE controller. This is how you do it:

Right click on "My Computer". Select "Properties". Select tab "Hardware". Hit the button "Device Manager". Expand IDE ATA/ATAPI controllers. Right click "Primary IDE Channel" and hit "Uninstall". Reboot the Windows XP operating system and you're done. If you want to be sure DMA is enabled, right click "Primary IDE Channel" and select "Properties. Then, select "Advanced Settings" tab. If "Current Transfer Mode" shows something about PIO, DMA is disabled.

News:

The laptop is fixed. Had to do multiple things to had it working properly: completely clean it; replace hard disk; replace one of the memory sticks.