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Kaspersky Anti-Ransomware Tool
What it is
Kaspersky Anti-Ransomware Tool is a free Windows utility designed to protect desktops, laptops, and servers from ransomware and crypto-malware. It uses cloud-assisted behavior detection and automatically scans and monitors files to identify and neutralize threats. It can also detect adware, pornware, riskware, and crypto-mining software. The protection stack is designed to cover threats from delivery through execution, and Kaspersky says the tool can run alongside most current security software. The Home plan costs nothing and covers up to five devices per account. The Business plan costs nothing, covers up to 50 devices, and includes email reporting. Supported systems are Windows 7–11 and Windows Server 2008 R2–2022. Requirements include a compatible 1 GHz Intel Pentium III processor, 1 GB of memory for 32-bit systems or 2 GB for 64-bit systems, 350 MB of disk space, and internet access for updates. Installing the tool alongside Kaspersky paid endpoint products is prevented.
For and against
For
- Free Home plan covers up to five devices per account.
- Free Business plan covers up to 50 devices.
- Detects ransomware and several other unwanted software types.
- Supports Windows 7–11 and Windows Server 2008 R2–2022.
Against
- Windows only.
- Requires internet access for updates.
- Cannot be installed alongside Kaspersky paid endpoint products.
The verdict
Kaspersky Anti-Ransomware Tool offers free Windows protection with separate Home and Business device limits. Check the system requirements and whether you use a Kaspersky paid endpoint product before choosing it.
Who it suits
It suits Windows users looking for free ransomware protection for personal devices or business systems. The listed plans cover up to five devices per Home account or up to 50 devices with the Business plan.
Plans and prices
Kaspersky Anti-Ransomware Tool for Business
Up to 50 devices · email reporting · completely free to download and use
Read 4 Oct 2026 · kaspersky.com
Kaspersky Anti-Ransomware Tool for Home
Up to 5 devices per account · completely free to download and use
Read 4 Oct 2026 · kaspersky.com
On the record
- Additional detections
- It can also detect and block adware, pornware, riskware, and crypto-mining software.kaspersky.com · read 4 Oct 2026
- Automatic monitoring
- It automatically scans and monitors computer files to identify and neutralize threats.kaspersky.com · read 4 Oct 2026
- Company
- Kaspersky describes itself as a global cybersecurity and digital privacy company founded in 1997.kaspersky.com · read 4 Oct 2026
- Compatibility
- Kaspersky says the lightweight tool works alongside current security software and is compatible with most cybersecurity solutions.kaspersky.com · read 4 Oct 2026
- Detection
- It uses cloud-assisted behavior detection to identify and block ransomware and crypto-malware.kaspersky.com · read 4 Oct 2026
- Headquarters address
- Kaspersky’s privacy policy identifies AO Kaspersky Lab at 39A Leningradskoe Shosse, Moscow, Russian Federation.kaspersky.com · read 4 Oct 2026
- Paid endpoint products
- The tool’s functionality is included in Kaspersky paid endpoint solutions, and installing it alongside them is prevented to avoid application overhead.kaspersky.com · read 4 Oct 2026
- Privacy
- The product page describes the tool as GDPR ready and says data is processed and protected responsibly.kaspersky.com · read 4 Oct 2026
- Protection stages
- The tool is designed to protect against ransomware from delivery through execution using a multilayered protection stack.kaspersky.com · read 4 Oct 2026
- Purpose
- The tool provides ransomware and cryptolocker protection for desktops, laptops, and servers.kaspersky.com · read 4 Oct 2026
- Requirements
- The listed requirements include a 1 GHz Intel Pentium III or compatible CPU, 1 GB memory for 32-bit or 2 GB for 64-bit systems, 350 MB disk space, and an internet connection for updates.kaspersky.com · read 4 Oct 2026
- Windows support
- The listed operating systems are Windows 7–11 and Windows Server 2008 R2–2022.kaspersky.com · read 4 Oct 2026
