i can't set ultradma mode instead of pio

[Guest]

after a virus atack my computer works wery slowly, it is because the ide
settings are set to pio although i selected "use DMA if available" everything
were all right before the atack it worked on DMA. how can i fix this problem?
the reinstall of chipset drivers made no effect.

 

[Cari \(MS-MVP\)]

See if this helps:
http://support.microsoft.com/default.aspx?scid=kb;en-us;817472

 

[Guest]

i tried to uninstall primary ide channel, restarted the computer. just when
it starts booting windows restarts again, it prots that windows encuontered
an error lets me choose "start normaly, safe mode..." until i do not choose
"last good known configuration" it restarts again and again and again. is
there any solution?

 

[Cari \(MS-MVP\)]

Try a Repair Installation of Windows XP.

http://www.michaelstevenstech.com/XPrepairinstall.htm

After the Repair Installation, ensure you have the latest motherboard
(chipset) drivers for your PC and install them as well.