

This issue occurs because the AHCI driver (Msahci.sys) does not follow AHCI specifications to access related registers. Note The issue occurs frequently under heavy disk I/O conditions. This issue may affect Windows Explorer and any other application that performs I/O operations on the SATA/AHCI device. After this change takes effect, the computer randomly stops responding for 60 seconds or for longer. In the BIOS setup, you change the Serial Advanced Technology Attachment (SATA) mode of a disk device to use the Advanced Host Controller Interface (AHCI) specification.


You have a computer that is running Windows Server 2008 R2 or Windows 7.
