Bitdefender is one of the best rated and trusted antivirus software for Windows operating system. Its three major products – Bitdefender Antivirus Plus, Internet Security, and Total Security – offer best in class protection without impacting the system performance. If you are in the market for a good antivirus software, you should not miss this golden opportunity. Bitdefender is offering free six months license key of Bitdefender Internet Security 2015 software for a limited time. Bitdefender Internet Security 2015 includes one-click security, antivirus and anti-spyware, autopilot, PC tune-up with one-click optimizer, two-way firewall, parental control, and cloud antispam. Bitdefender Internet Security 2015 also includes Wallet, a secure feature to speed up your online shopping by autocompleting credit card details and other credentials. One of the best things about Bitdefender products is that they don’t slow down your PC unlike other security products. Free 6 months license of Bitdefender Internet Security Here is what you need to do in order to avail the 180 day or 6 months license of Bitdefender Internet Security 2015 for free. Step 1: Head over this page of Bitdefender, enter your email address, and then enter the security code before clicking the Get Free License button. Step 2: Check your email inbox to see an email message from Bitdefender containing your 6 months license of Bitdefender Internet Security. Step 3: Finally, click the link offered in the mail (see the above picture) to visit the download page of Bitdefender Internet Security 2015 and download the installer. Alternatively, you can visit Bitdefender webpage to download the trial copy of Bitdefender Internet Security 2015 setup file. Step 4: Run the downloaded installer, follow on-screen instructions to get it installed. When asked for a product license, enter the product key that you have received from Bitdefender through the mail. Note that free version of Bitdefender Antivirus software is also available for Windows operating system with support for latest version of Windows.