I personally use avast! Free antivirus. There are many free antivirus program available like AVG Free antivirus or avast! free antivirus. Microsoft security essentials is also free. This is up to you which you choose.
My Computer
At a glance
Windows 7 Ultimate x64 SP1 / Ubuntu 12.04.3 x64Intel Core 2 Duo 2.20 Ghz4.0GB Dual-Channel DDR3 @ 398MHzNVIDIA GeForce GT 240M 1GB
- Computer Manufacturer/Model Number
- Lenovo Ideapad Y550 (4186)
- OS
- Windows 7 Ultimate x64 SP1 / Ubuntu 12.04.3 x64
- CPU
- Intel Core 2 Duo 2.20 Ghz
- Motherboard
- LENOVO KIWB1 (U2E1)
- Memory
- 4.0GB Dual-Channel DDR3 @ 398MHz
- Graphics Card(s)
- NVIDIA GeForce GT 240M 1GB
- Sound Card
- Realtek High Definition Audio
- Monitor(s) Displays
- 15 inch (1366x768@60Hz)
- Screen Resolution
- 1366*768
- Hard Drives
- 320GB Hitachi HITACHI HTS545032B9A300 (SATA)
- Keyboard
- Build In
- Mouse
- Touchpad
- Internet Speed
- 30 KBps (Dial up)