Right operative system for my netbook

Hello everyone, I need to download/install an OS in my little netbook but I don't know which is the right one taking into consideration the characteristics of my netbook. Could you help me please?

• Operating System
  
  
  Windows 7 Starter, 32bit
  
  This version contains all product updates (SP1)
  
  
• Display
  
  10.1" LED Backlight WSVGA (1024x600) Screen
  
  
• CPU
  
  Intel® Atom™ N2600 (Dual Core; 1.6GHz) Processor
  
  
• Chipset
  
  Intel® NM10 Express Chipset
  
  
• Memory
  
  DDR3, 1 x SO-DIMM, 1GB/2GB ( Maximum 2GB ) *1
  
  
• Storage
  
  SATA 320GB/500GB HDD
  
  
• Wireless Data Network
  
  WLAN 802.11 b/g/n@2.4GHz
  
  Bluetooth V3.0+HS(Optional)
  
  
• Camera
  
  0.3 MP Camera
  
  
• Audio
  
  Hi-Definition Audio CODEC 
  
  High Quality Speaker
  
  High Quality Mic
  
  
• Interface
  
  1 x VGA Connector
  
  3 x USB 2.0 
  
  1 x LAN RJ-45 
  
  1 x HDMI
  
  1 x Audio Jack (Headphone/Mic-In)
  
  1 x Card Reader : SD/ SDHC/ MMC
  
  
• Battery
  
  11hrs (TBD)(6cells, 48W/h) battery life
  
  5hrs (TBD)(3cells, 23W/h) battery life
  
  
  
  *Subject to system configuration and usage.
  
  Please visit our web page for more information.
  
  
• Dimensions
  
  262 x 178 x 23.6 ~36.4 mm (WxDxH)
  
  
• Weight
  
  1.25 Kgs (w/ 6cell battery)
  
  1.1 Kgs (w/ 3cell battery)
  
  
• Color
  
  Texture : Black, White
  
  
• Note
  
  *1 : The memory is fixed on the motherboard and there is no SO-DIMM on the motherboard. The On Board Memory is unable to be removed or replaced for extending