Borre el audio y quiero tener audio

Hola,

creo que borre o borre el sonido de mi laptop y ahora no tengo idea como volver atener audio ya active el everest pero no se que mas hacer...
--------[ EVEREST Ultimate Edition ]------------------------------------------------------------------------------------

Version EVEREST v5.01.1700
Benchmark Module 2.4.258.0
Homepage http://www.lavalys.com/
Report Type Report Wizard [ TRIAL VERSION ]
Computer NUNI
Generator nuni
Operating System Microsoft Windows XP Professional 5.1.2600 (WinXP Retail)
Date 2011-10-29
Time 22:46


--------[ Summary ]-----------------------------------------------------------------------------------------------------

Computer:
Computer Type ACPI Multiprocessor PC (Mobile)
Operating System Microsoft Windows XP Professional
OS Service Pack [ TRIAL VERSION ]
Internet Explorer 6.0.2900.2180 (IE 6.0 SP2)
DirectX 4.09.00.0904 (DirectX 9.0c)
Computer Name NUNI
User Name nuni
Logon Domain [ TRIAL VERSION ]
Date / Time 2011-10-29 / 22:46

Motherboard:
CPU Type Intel Atom N270, 1600 MHz (12 x 133)
Motherboard Name Acer AOA150
Motherboard Chipset Mobile Intel Calistoga-GSE i945GSE
System Memory [ TRIAL VERSION ]
DIMM2: Hynix HYMP164S64CP6-Y5 [ TRIAL VERSION ]
BIOS Type Insyde (05/09/08)

Display:
Video Adapter Mobile Intel(R) 945 Express Chipset Family (224 MB)
Video Adapter Mobile Intel(R) 945 Express Chipset Family (224 MB)
3D Accelerator Intel GMA 950
Monitor AU Optronics B089AW01 V1 [8.9" LCD]
Monitor AU Optronics B089AW01 V1 [8.9" LCD]
Monitor AU Optronics B089AW01 V1 [8.9" LCD]

Multimedia:
Audio Adapter Realtek ALC268 @ Intel 82801GBM ICH7-M - High Definition Audio Controller [B-0]

Storage:
IDE Controller Standard Dual Channel PCI IDE Controller
Disk Drive WDC WD1600BEVT-22ZCT0 (149 GB, IDE)
SMART Hard Disks Status OK

Partitions:
C: (NTFS) [ TRIAL VERSION ]
Total Size [ TRIAL VERSION ]

Input:
Keyboard Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
Mouse PS/2 Compatible Mouse

Network:
Primary IP Address [ TRIAL VERSION ]
Primary MAC Address 00-24-2B-03-6E-79
Network Adapter Atheros AR5007EG Wireless Network Adapter (10.0 [ TRIAL VERSION ])
Network Adapter Realtek RTL8102E Family PCI-E Fast Ethernet NIC

Peripherals:
FireWire Controller JMicron JMB381 PCI-E 1394a OHCI FireWire Controller
FireWire Controller JMicron JMB383 PCI-E 1394a OHCI FireWire Controller and Memory Card Host Controller
USB1 Controller Intel 82801GBM ICH7-M - USB Universal Host Controller [B-0]
USB1 Controller Intel 82801GBM ICH7-M - USB Universal Host Controller [B-0]
USB1 Controller Intel 82801GBM ICH7-M - USB Universal Host Controller [B-0]
USB1 Controller Intel 82801GBM ICH7-M - USB Universal Host Controller [B-0]
USB2 Controller Intel 82801GBM ICH7-M - Enhanced USB2 Controller [B-0]
USB Device Acer Crystal Eye webcam
Battery Microsoft AC Adapter
Battery Microsoft ACPI-Compliant Control Method Battery

DMI:
DMI BIOS Vendor Acer
DMI BIOS Version v0.3305
DMI System Manufacturer Acer
DMI System Product AOA150
DMI System Version 1
DMI System Serial Number [ TRIAL VERSION ]
DMI System UUID [ TRIAL VERSION ]
DMI Motherboard Manufacturer Acer
DMI Motherboard Product
DMI Motherboard Version Base Board Version
DMI Motherboard Serial Number [ TRIAL VERSION ]
DMI Chassis Manufacturer Chassis Manufacturer
DMI Chassis Version Chassis Version
DMI Chassis Serial Number [ TRIAL VERSION ]
DMI Chassis Asset Tag [ TRIAL VERSION ]
DMI Chassis Type
DMI Total / Free Memory Sockets 2 / 0


--------[ DMI ]---------------------------------------------------------------------------------------------------------

[ BIOS ]

BIOS Properties:
Vendor Acer
Version v0.3305
Release Date 05/09/2008
Size 1024 KB
Boot Devices Floppy Disk, Hard Disk, CD-ROM
Capabilities Flash BIOS, Shadow BIOS, Selectable Boot, EDD
Supported Standards DMI, ACPI
Expansion Capabilities PCI, USB

[ System ]

System Properties:
Manufacturer Acer
Product AOA150
Version 1
Serial Number [ TRIAL VERSION ]
SKU# Napa_Fab5
Family Intel_Mobile
Universal Unique ID [ TRIAL VERSION ]
Wake-Up Type Power Switch

--------[ Motherboard ]-------------------------------------------------------------------------------------------------

Motherboard Properties:
Motherboard ID <DMI>
Motherboard Name Acer AOA150