Good quality graphics Disk 750 GB enough for now Supplied with Windows 8.1 and reinstalled Windows 7 64-bit Home. Very quiet Flat: original 6-cell battery, replaced approximately 2:15 autonomy (very light) with a 9-cell (battery for Sony E14 / E15 / SVE14 / SVE15 / SVE17 / Vaio E17, Fit 17 / VPC-C14 / VPC- C15 / VPCCA / VPC-CA / VPCCB / VPC-CB / VPCEH / VPC-EH / VPCEJ) = about 5:30 of battery life! Correct set