Hello to all ! First: sorry for the english... Mine is a bit rusty... I've had the same problem with an IBM 40 GB HD. I've tried many tricks after reading several hints on net forums (cable checking, mem test, disk test...) In fact, I'm pretty sure the problem is relative to the disk instead of the system because my KERNEL_DATA_INPAGE_ERROR occured twice with two different computers, both times during XP installation. Does this help somebody ? PS: The KERNEL_DATA_INPAGE_ERROR occured with this message: STOP: 0x0000007A (0xE10203F4, 0xC0000000E, ...) win32k.sys Address BF8ED7DD base at BF800000