si tienes conexion a internet, mirate este post.
http://www.forokeys.com/foro/programas-y-utilidades/actualizar-nuestros-drivers/pero creo que tendras problemas, esto es un extracto de la informacion sacada de la pagina oficial de VAIO, para la actualizacion de drives con windows 7
Puede que algunos modelos específicos de cada serie que aparecen a continuación no sean aptos para la actualización Windows 7.
Si su modelo no aparece en la lista expandida, no es apto para la actualización.
Serie AW
VGN-AW11M/H
VGN-AW11S/B
VGN-AW11SR/B
VGN-AW11XU/Q
VGN-AW11Z/B
VGN-AW11ZR/B
VGN-AW1RXU/Q
VGN-AW21M/H
VGN-AW21S/B
VGN-AW21SR/B
VGN-AW21VY/Q
VGN-AW21XY/Q
VGN-AW21Z/B
VGN-AW21ZR/B
VGN-AW2XRY/Q
VGN-AW31M/H
VGN-AW31S/B
VGN-AW31XY/Q
VGN-AW31ZJ/B
VGN-AW3XRY/Q
VGN-AW3ZRJ/B
Serie BZ
VGN-BZ12EN
VGN-BZ12VN
VGN-BZ12XN
VGN-BZ13VN
VGN-BZ13XN
VGN-BZ2
VGN-BZ21VN
VGN-BZ21XN
VGN-BZ26M
VGN-BZ26V
VGN-BZ26X
VGN-BZ31VT
VGN-BZ31XT
VGN-BZ45X
Serie CS
VGN-CS11S/P
VGN-CS11S/Q
VGN-CS11S/W
VGN-CS11SR/P
VGN-CS11SR/Q
VGN-CS11SR/W
VGN-CS11Z/R
VGN-CS11Z/T
VGN-CS11ZR/R
VGN-CS11ZR/T
VGN-CS2
VGN-CS21S/P
VGN-CS21S/R
VGN-CS21S/T
VGN-CS21S/V
VGN-CS21S/W
VGN-CS21Z/Q
VGN-CS26M
VGN-CS26S
VGN-CS26Z
VGN-CS3
VGN-CS31MR/P
VGN-CS31MR/W
VGN-CS31S/P
VGN-CS31S/Q
VGN-CS31S/R
VGN-CS31S/T
VGN-CS31S/V
VGN-CS31S/W
VGN-CS31SR/P
VGN-CS31SR/Q
VGN-CS31SR/V
VGN-CS31SR/W
VGN-CS31ST/P
VGN-CS31ST/Q
VGN-CS31ST/R
VGN-CS31ST/T
VGN-CS31ST/V
VGN-CS31ST/W
VGN-CS31Z/Q
VGN-CS31ZR/R
VGN-CS31ZR/T
VGN-CS31ZT/Q
VGN-CS35V
VGN-CS35X
VGN-CS36M
VGN-CS36S
VGN-CS36Z
Serie FW
VGN-FW21E
VGN-FW21ER
VGN-FW21J
VGN-FW21L
VGN-FW21M
VGN-FW21MR
VGN-FW21SR
VGN-FW21Z
VGN-FW21ZR
VGN-FW3
VGN-FW31E
VGN-FW31J
VGN-FW31M
VGN-FW31ZJ
VGN-FW32J
VGN-FW36M
VGN-FW36S
VGN-FW36Z
VGN-FW4
VGN-FW41E/H
VGN-FW41E/W
VGN-FW41ET/H
VGN-FW41J/H
VGN-FW41M/H
VGN-FW41MR/H
VGN-FW41ZJ/H
VGN-FW44MR
VGN-FW45V
VGN-FW45X
VGN-FW46M
VGN-FW46S
VGN-FW46Z
VGN-FW48E/H
VGN-FW4ZRJ/H
VGN-FW4ZTJ/H
Serie JS
VGC-JS1E/B
VGC-JS1E/P
VGC-JS1E/S
VGC-JS1E/T
VGC-JS2E/G
VGC-JS2E/P
VGC-JS2E/Q
VGC-JS2E/S
VGC-JS2E/T
VGC-JS3E/G
VGC-JS3E/P
VGC-JS3E/Q
VGC-JS3E/S
VGC-JS3E/T
Serie LN
VGC-LN1M
VGC-LN1MR
VGC-LN2M
VGC-LN2MR
Serie LV
VGC-LV1S
VGC-LV1SR
VGC-LV2J
VGC-LV2SJ
VGC-LV2SRJ
VGC-LV3SJ/B
VGC-LV3SJ/S
VGC-LV3SRJ
Serie NS
VGN-NS10E/S
VGN-NS10J/S
VGN-NS10L/S
VGN-NS11E/S
VGN-NS11ER/S
VGN-NS11J/S
VGN-NS11M/S
VGN-NS11MR/S
VGN-NS11S/S
VGN-NS11SR/S
VGN-NS11Z/S
VGN-NS11ZR/S
VGN-NS12M/S
VGN-NS12M/W
VGN-NS20E/P
VGN-NS20E/S
VGN-NS20J/S
VGN-NS20M/S
VGN-NS20S/S
VGN-NS20Z/S
VGN-NS21E/S
VGN-NS21ER/S
VGN-NS21M/P
VGN-NS21M/S
VGN-NS21M/W
VGN-NS21S/S
VGN-NS21S/W
VGN-NS21SR/S
VGN-NS21X/S
VGN-NS21Z/S
VGN-NS3
VGN-NS30E/P
VGN-NS30E/S
VGN-NS30E/W
VGN-NS30Z/S
VGN-NS31ER/S
VGN-NS31M/P
VGN-NS31M/S
VGN-NS31M/W
VGN-NS31MR/S
VGN-NS31MT/S
VGN-NS31S/S
VGN-NS31ST/S
VGN-NS36E
VGN-NS38E/S
VGN-NS38M/P
VGN-NS38M/S
VGN-NS38M/W
Serie NW
VGN-NW11S/S
VGN-NW11S/T
VGN-NW11SR/S
VGN-NW11Z/S
VGN-NW11Z/T
VGN-NW11ZR/S
VGN-NW12Z/S
VGN-NW12Z/T
Serie P
VGN-P11Z/G
VGN-P11Z/Q
VGN-P11Z/R
VGN-P11Z/W
VGN-P11ZR/G
VGN-P11ZR/R
VGN-P11ZR/W
VGN-P19VN/Q
VGN-P19VRN/Q
VGN-P19WN/Q
VGN-P21Z/G
VGN-P21Z/Q
VGN-P21Z/R
VGN-P21Z/W
VGN-P21ZR/G
VGN-P21ZR/Q
VGN-P21ZR/R
VGN-P21ZR/W
VGN-P29VN/Q
VGN-P29VRN/Q
Serie RT
VGC-RT1SRU
VGC-RT1SU
VGC-RT2SRY
VGC-RT2SY
Serie SR
VGN-SR21M/S
VGN-SR21RM/H
VGN-SR21RM/S
VGN-SR29VN/S
VGN-SR29XN/S
VGN-SR2RVN/S
VGN-SR3
VGN-SR31M/S
VGN-SR36M
VGN-SR36S
VGN-SR36Z
VGN-SR37M
VGN-SR37V
VGN-SR37X
VGN-SR39VN/S
VGN-SR39XN/S
VGN-SR4
VGN-SR41M/P
VGN-SR41M/S
VGN-SR41M/W
VGN-SR45X
VGN-SR46E
VGN-SR46M
VGN-SR46N
VGN-SR46S
VGN-SR46V
VGN-SR46X
VGN-SR46Z
VGN-SR47L
VGN-SR49VN/H
VGN-SR49VT/H
VGN-SR49XN/H
VGN-SR4MR/P
VGN-SR4MR/S
VGN-SR4MR/W
VGN-SR4VR/H
Serie TT
VGN-TT11LN/B
VGN-TT11M/N
VGN-TT11RM/N
VGN-TT11RM/R
VGN-TT11VN/X
VGN-TT11WN/B
VGN-TT11XN/B
VGN-TT16VN
VGN-TT1RLN/B
VGN-TT1RVN/X
VGN-TT1RWN/X
VGN-TT2
VGN-TT21JN/B
VGN-TT21M/N
VGN-TT21VN/X
VGN-TT21WN/B
VGN-TT21XN/B
VGN-TT25V
VGN-TT25W
VGN-TT25X
VGN-TT26M
VGN-TT26RM
VGN-TT26VN
VGN-TT26VRN
VGN-TT26XN
VGN-TT26XRN
VGN-TT2WRN/X
VGN-TT3
VGN-TT31MR/N
VGN-TT31MR/R
VGN-TT36RM
VGN-TT36VRN
VGN-TT36XRN
VGN-TT3WRN/X
Serie Z