Your event log contains postings that are similar to:
Source: ACPI Category: None Type: Error Event ID: 12 User: N/A Computer: Machine_Name Description: AMLI: ACPI BIOS is attempting to create an illegal memory OpRegion, starting at address 0x400, with a length of 0x100. This region lies in the Operating system's protected memory address range (0x0 - 0x9fc00). This could lead to system instability. Please contact your system vendor for technical assistance. For more information, For more information, see Help and Support Center at: http://go.microsoft.com/fwlink/events.asp Source: ACPI Category: None Type: Error Event ID: 5 User: N/A Computer: Machine_Name Description: AMLI: ACPI BIOS is attempting to write to an illegal IO port address (0xcf8), which lies in the 0xcf8 - 0xcff protected address range. This could lead to system instability. Please contact your system vendor for technical assistance. For more information, see Help and Support Center at: http://go.microsoft.com/fwlink/events.asp Source: ACPI Category: None Type: Error Event ID: 4 User: N/A Computer: Machine_Name Description: AMLI: ACPI BIOS is attempting to read from an illegal IO port address (0xcfc), which lies in the 0xcf8 - 0xcff protected address range. This could lead to system instability. Please contact your system vendor for technical assistance. For more information, see Help and Support Center at: http://go.microsoft.com/fwlink/events.aspIf you computer's BIOS tries to write to a port in ACPI Machine Language ( AML), you will receive similar errors. Windows NT-based computers, including Windows XP and Windows Server 2003, do NOT allow these operations as they can cause instability.
To resolve this problem, contact your manufacturer about a BIOS upgrade.
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