At least 300 GB

Acer E1-571-6472 comes with these high level specs: 3rd Generation Intel Core i5-3230M Processor, Windows 8 , 15.6-Inch HD Widescreen CineCrystal LED-backlit Display, Mobile Intel HM77 Express Chipset, Intel HD Graphics 4000 with 128MB of dedicated system memory, 6144MB DDR3 Memory, 750GB SATA Hard Drive (5400RPM), 8X DVD-Super Multi Double-Layer Drive, Multi-in-1 Digital Media Card Reader, 802.11b/g/n Wi-Fi CERTIFIED, Built-In HD Webcam, 3 - USB 2.0 Ports, 1 - HDMI Port, 1 - Gigabit Ethernet Port, 6-cell Li-ion Battery (4400 mAh), Up to 4.5-hours Battery Life, 5.51 lbs.,2.5 kg (system unit only)

Acer V3-571-6698 comes with these high level specs: 3rd Generation Intel Core i5-3210M Processor, Windows 8, 15.6 HD Widescreen CineCrystal LED-backlit Display, Mobile Intel HM77 Express Chipset, Intel HD Graphics 4000 with 128MB of dedicated system memory, 6144MB DDR3 Memory, 750GB SATA Hard Drive (5400RPM), 8X DVD-Super Multi Double-Layer Drive, Multi-in-1 Digital Media Card Reader, 802.11b/g/n Wi-Fi CERTIFIED, Bluetooth 4.0+HS, Built-In HD Webcam, 2 - USB 2.0 Ports, 1 - USB 3.0 Port, 1 - HDMI Port, 1 - Gigabit Ethernet Port, 6-cell Li-ion Battery (4400 mAh), Up to 4.5-hours Battery Life, 5.74 lbs. | 2.6 kg (system unit only)

The LX.PTW02.039 features an Intel Core i3-350M 2.26 GHz dual-core processor and 4 GB DDR3 SDRAM so you can breeze through demanding applications at work or play. A roomy 320 GB hard drive provides ample storage for photos, videos, music and other critical data. Plus, the user-friendly Microsoft Windows 7 Home Premium operating system comes pre-installed.

Acer V3-551-7423 comes with these high level specs: AMD Dual-Core A6-4400M Accelerated Processor, Windows 8, 15.6-Inch HD Widescreen CineCrystal LED-backlit Display, AMD A70M Fusion Chipset, AMD Radeon HD 7520G Graphics with 512MB of graphics system memory, 4096MB DDR3 Memory, 500GB SATA Hard Drive (5400RPM), 8X DVD-Super Multi Double-Layer Drive, Multi-in-1 Digital Media Card Reader, 802.11b/g/n Wi-Fi CERTIFIED , Bluetooth 4.0+HS, Built-In HD Webcam, 2 - USB 2.0 Ports, 1 - USB 3.0 Port, 1 - HDMI Port, 1 - Gigabit Ethernet Port, 6-cell Li-ion Battery (4400 mAh), Up to 5-hours Battery Life, 5.74 lbs. 2.6 kg (system unit only)

Acer V3-731-4649 comes with these high level specs: Intel Pentium Processor B960, Windows 8, 17.3 HD Widescreen CineCrystal LED-backlit Display, Mobile Intel HM77 Express Chipset, Intel HD Graphics with 128MB of dedicated system memory, 4096MB DDR3 Memory, 500GB SATA Hard Drive (5400RPM) with Dual Hard Drive Support, Optimized Dolby Home Theater v4 audio enhancement, 8X DVD-Super Multi Double-Layer Drive, Multi-in-1 Digital Media Card Reader, 802.11b/g/n Wi-Fi CERTIFIED, Bluetooth 4.0+HS, Built-In HD Webcam, 2 - USB 2.0 Ports, 2 - USB 3.0 Port, 1 - HDMI Port, 1 - Gigabit Ethernet Port, 6-cell Li-ion Battery (4400 mAh), Up to 4-hours Battery Life, 7.05 lbs. | 3.2 kg (system unit only)Don’t forget Office with your PC purchase.  Downlo ad Office 2013 instantly with Amazon Digital Software.