Hardware and software requirements

General requirements

• 1500 MB free disk space on the hard drive
• Processor that supports the SSE2 instruction set (except ARM).
• Internet access (for the application installation and activation, for the use of Kaspersky Security Network, and for updating databases and application modules)
• Microsoft Windows® Installer 4.5 or later
• Microsoft .NET Framework 4 or later
• Microsoft .NET Desktop Runtime 5.x (5.0.10 or higher).

Operating system requirements

Operating system	CPU	Free RAM	Restrictions
Microsoft Windows 11 Home (21H2, 22H2)	1 GHz or higher	4 GB (for a 64-bit operating system)	Windows Subsystem for Linux 2 (WSL2) is not supported.
Microsoft Windows 11 Enterprise (21H2, 22H2)
Microsoft Windows 11 Pro (21H2, 22H2)
Microsoft Windows 10 Home (versions: 1507, 1511, 1607, 1703, 1709, 1803, 1809, 1903, 1909, 2004, 20H2, 21H1, 21H2, 22H2)	1 GHz or higher	1 GB (for 32-bit operating systems) or 2 GB (for 64-bit operating systems)
Microsoft Windows 10 Enterprise (versions: 1507, 1511, 1607, 1703, 1709, 1803, 1809, 1903, 1909, 2004, 20H2, 21H1, 21H2, 22H2)
Microsoft Windows 10 Pro (versions: 1507, 1511, 1607, 1703, 1709, 1803, 1809, 1903, 1909, 2004, 20H2, 21H1, 21H2, 22H2)
Microsoft Windows 8.1 (Service Pack 0 or later, Windows 8.1 Update)	1 GHz or higher	1 GB (for 32-bit operating systems) or 2 GB (for 64-bit operating systems)
Microsoft Windows 8.1 Pro (Service Pack 0 or later, Windows 8.1 Update)
Microsoft Windows 8.1 Enterprise (Service Pack 0 or later, Windows 8.1 Update)
Microsoft Windows 8 (Service Pack 0 or later)	1 GHz or higher	1 GB (for 32-bit operating systems) or 2 GB (for 64-bit operating systems)
Microsoft Windows 8 Pro (Service Pack 0 or later)
Microsoft Windows 8 Enterprise (Service Pack 0 or later)
Microsoft Windows 7 Starter (Service Pack 0 or later)	1 GHz or higher	1 GB (for 32-bit operating systems) or 2 GB (for 64-bit operating systems)
Microsoft Windows 7 Home Basic (Service Pack 0 or later)
Microsoft Windows 7 Home Premium (Service Pack 0 or later)
Microsoft Windows 7 Professional (Service Pack 0 or later)
Microsoft Windows 7 Ultimate (Service Pack 0 or later)

For Safe Browsing to work, the Base Filtering Engine service must be running in the operating system.

Browser support

The following browsers fully support the application:

• Chromium-based Microsoft Edge 77.x – 104.x;
• Mozilla™ Firefox™ versions 52.x – 105.x;
• Mozilla™ Firefox™ ESR 52.x, 60.x, 68.x, 78.x, 91.x, 102.x;
• Google Chrome™ versions 48.x – 105.x;
• Yandex Browser 18.3.1 – 22.9.1 (with limitations).

The following browsers support installing the Kaspersky Protection extension:

• Chromium-based Microsoft Edge 77.x – 104.x;
• Mozilla™ Firefox™ versions 52.x – 105.x;
• Mozilla™ Firefox™ ESR 52.x, 60.x, 68.x, 78.x, 91.x, 102.x;
• Google Chrome™ versions 48.x – 105.x.

The following browsers support On-Screen Keyboard and scanning of encrypted connections:

• Chromium-based Microsoft Edge 77.x – 104.x;
• Mozilla Firefox versions 52.x – 105.x;
• Mozilla Firefox ESR 52.x, 60.x, 68.x, 78.x, 91.x; 102.x;
• Google Chrome 48.x – 105.x.

Newer versions of browsers can be supported if the browser supports the corresponding technology.

Kaspersky Free supports Google Chrome and Mozilla Firefox in 32-bit and in 64-bit operating systems.

Requirements for tablet computers

• Microsoft Windows 8, Microsoft Windows 8.1, Microsoft Windows 10, Microsoft Windows 11;
• Intel® Celeron® processor with a clock speed of 1.66 GHz or faster;
• 1000 MB free RAM.

Requirements for netbooks

• Intel Atom™ CPU 1.60 GHz or faster;
• 1024 MB free RAM;
• 10.1-inch display with 1024x768 screen resolution;
• Intel GMA 950 graphics core or later.

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