Since you're probably going to use your netbooks mostly for mobile browsing, it is all the more susceptible to virus attacks. The Internet is hazardous to your netbook's health. And, to avoid getting attacked by viruses, malwares, and other online threats, your best bet is to install an anti-virus program. AVG Anti-Virus Free Edition 8.0 is your best bet for putting an anti-virus software on your netbook without spending a dime.
AVG Anti-Virus Free Edition 8.0 protects your Windows system against adware, identity theft, spyware, and most viruses. The best thing about this software is the fact that it does its job without affecting your system's performance and won't cause your netbook to hang-up while you're working.