Yes, you need to update it and see if it happens again. Or simply remove it if not needed.
Code:
0: kd> lmvm iaStor
start end module name
86414000 864ee000 iaStor T (no symbols)
Loaded symbol image file: iaStor.sys
Image path: \SystemRoot\system32\DRIVERS\iaStor.sys
Image name: iaStor.sys
Timestamp: Fri Jun 05 07:42:33 2009 (4A287809)
CheckSum: 0005798D
ImageSize: 000DA000
Translations: 0000.04b0 0000.04e4 0409.04b0 0409.04e4 Source >
Driver Reference Table