Kaspersky Internet Security 3 Device - Download Type: Internet Security Operating Systems Supported: Windows Packaging: Download System Requirements: Windows-based desktops and laptops: Approximately 800 MB free space on the hard drive Microsoft Internet Explorer 8 or higher Microsoft .NET Framework 4 or higher Microsoft Windows 10 Home / Pro / Enterprise Microsoft Windows 8 & 8.1 / Pro / Enterprise / 8.1 update Microsoft Windows 7 Starter / Home Basic / Home Premium / Professional / Ultimate - SP1 or higher Microsoft Windows Vista Home Basic / Home Premium / Business / Enterprise / Ultimate - SP1 or higher Microsoft Windows XP Home / Professional (32-bit) SP3 or higher / Professional (64-bit) SP2 or higher Processor: 1 GHz or higher Memory (RAM): 1 GB (32-bit) or 2 GB (64-bit) Windows-based tablets (system with an Intel processor): Microsoft Windows 102 Home / Pro / Enterprise3 Microso...