Usb drivers in winxp deleted by mistake. now window is not booting as wel , on s

[rbkasat]

usb drivers in winxp deleted by mistake. now window is not booting as wel , on starting setup error is comong like unknown disk, and there is no option to change from sata to ata in my laptop BIOS and no floppy drive, that on installation time i can put the required drivers except using nlite any other suggestions plz.

 

[rbkasat]

try to re install RAM