1. Set the DMA to PIO and then back to DMA!
Note that Microsoft writes to set it to PIO even if DMA is shown. Don't just look at this, but PERFORM the procedure.
What anti-parasite tools do you use?
I've got an HP Pavilion ZT 1170 laptop (1.1 GHz, 512 MB RAM) that suddenly went dog slow on my mother after she installed an XP home update about three months ago. Since then I've taken it and tried to reformat the hard drive with XP Pro, but that doesn't seem to have fixed the issue. I've also tried a BIOS update, but that doesn't seem to do anything either. What other things should I look at? Could it be a hardware issue? I know this is a bit of a simplistic posting, but I'm lost on this one at this point.