Have you installed anything new lately?
It may be a hardware confliction error, perhaps to components are speaking on the same IRQ address?
Windows normally manages these itself and allocates IRQs that are vacant, but maybe it hasn't done it this time?
If you have installed some hardware, beit a new Hard drive, printer, digital camera, anything, then i would suggest uninstalling it, remove i, and see if that fixes the problem.
TIO