Hardware and software requirements

General requirements

1500 MB free disk space on the hard drive
Processor that supports the SSE2 instruction set
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
Webcam access protection is provided only for compatible webcam models

When deploying on a personal computer

Operating system	CPU	Free RAM	Restrictions
Microsoft Windows 11 Home	1 GHz or higher	4 GB (for a 64-bit operating system)	The following limitations apply when installing Kaspersky Small Office Security on all versions of Microsoft Windows 11: Windows Subsystem for Linux 2 (WSL2) is not supported. Context menus of objects do not display Kaspersky Small Office Security commands. The menu must be expanded to display the commands.
Microsoft Windows 11 Enterprise
Microsoft Windows 11 Pro
Microsoft Windows 10 Home (versions: 1507, 1511, 1607, 1703, 1709, 1803, 1809, 1903, 1909, 2004, 20H2, 21H1, 21H2)	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)
Microsoft Windows 10 Pro (versions: 1507, 1511, 1607, 1703, 1709, 1803, 1809, 1903, 1909, 2004, 20H2, 21H1, 21H2)
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 1 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 1 or later)
Microsoft Windows 7 Home Premium (Service Pack 1 or later)
Microsoft Windows 7 Professional (Service Pack 1 or later)
Microsoft Windows 7 Ultimate (Service Pack 1 or later)
Microsoft Windows 7 Starter (Service Pack 1 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 1 or later)
Microsoft Windows 7 Home Premium (Service Pack 1 or later)
Microsoft Windows 7 Professional (Service Pack 1 or later)
Microsoft Windows 7 Ultimate (Service Pack 1 or later)

For the Safe Browsing, Anti-Banner, and Safe Money protection components to work, the Base Filtering Engine service must be running in the operating system.

Browser support

The following browsers support installing the Kaspersky Protection extension:

Chromium-based Microsoft Edge 77.x – 99.x;
Mozilla™ Firefox™ versions 52.x – 99.x;
Mozilla™ Firefox™ ESR 52.x, 60.x, 68.x, 78.x, 91.x;
Google Chrome™ versions 48.x – 100.x.

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

Chromium-based Microsoft Edge 77.x – 99.x;
Mozilla Firefox versions 52.x – 99.x;
Mozilla Firefox ESR 52.x, 60.x, 68.x, 78.x, 91.x;
Google Chrome 48.x – 100.x.

The following browsers support Protected Browser mode:

Microsoft Internet Explorer 11.0;
Chromium-based Microsoft Edge 77.x – 99.x;
Mozilla Firefox versions 52.x – 99.x;
Mozilla Firefox ESR 52.x, 60.x, 68.x, 78.x. 91.x;
Google Chrome 48.x – 100.x;
Yandex Browser 18.3.1 – 21.11.0 (with limitations).

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

Kaspersky Small Office Security 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.

The requirements for Kaspersky Password Manager are available in the help files of this application.

When deploying on a file server

Kaspersky Small Office Security cannot be installed on a file server running in Server Core mode.

Operating system	CPU	Free RAM
Microsoft Windows Server 2022	64-bit (x64) processor with a clock speed of 1.4 GHz or higher	2 GB
Microsoft Windows Server 2019 Essentials / Standard RTM	64-bit (x64) processor with a clock speed of 1.4 GHz or higher	2 GB
Microsoft Windows Server 2016 Essentials / Standard RTM	64-bit (x64) processor with a clock speed of 1.4 GHz or higher	2 GB
Microsoft Windows Server 2012 R2 Foundation / Essentials / Standard	64-bit (x64) processor with a clock speed of 1.4 GHz or higher	4 GB
Microsoft Windows Server 2012 Foundation / Essentials / Standard	64-bit (x64) processor with a clock speed of 1.4 GHz or higher	4 GB
Microsoft Windows Small Business Server 2011 Essentials / Standard Service Pack 1 or later	64-bit (x64) processor with a clock speed of 2 GHz or higher	8 GB
Microsoft Windows Server 2008 R2 Foundation / Standard / Enterprise Service Pack 1 or later	64-bit (x64) processor with a clock speed of 1.4 GHz or higher or dual-core processor with a clock speed of 1.4 GHz or higher	512 MB

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