Sony VAIO
VGC-LT10 Series
Recovery Disc CD.
For VGC-LT10E, -LT11E, -LT12E, -LT13E, -LT15E, -LT16E, and -LT18E.
Factory OS: Windows Vista 32-bit Home Premium.
It will NOT work on any other Sony VAIO desktops nor on any VAIO laptop models.