Kaspersky Rescue Disk is a highly reliable, free, and secure bootable tool designed to eliminate malware infections from compromised computers without booting the infected operating system. When standard antivirus software fails to launch or cannot disinfect active threats, this emergency utility provides an isolated environment to safely scan, clean, and recover your system.
By running from a bootable USB drive or CD/DVD, Kaspersky Rescue Disk bypasses the compromised Windows environment entirely. This prevents rootkits, ransomware, and other persistent malware from hiding or actively blocking the disinfection process, making it an indispensable tool for IT professionals and advanced users facing severe system corruption.
In This Post
Expert Tips
Updating Antivirus Databases Offline
- Boot into the Kaspersky Rescue Disk graphical user interface.
- Connect your PC to the internet via an Ethernet cable.
- Click on the My Update Center tab.
- Click Start Update to download the latest virus definitions before running a scan.
How This Would Help: Ensures the scanner can detect the absolute latest malware, ransomware, and zero-day threats that may have infected your system recently.
Repairing Windows Boot Configuration via Registry Editor
- Open the main menu in the bottom-left corner of the rescue environment.
- Select Kaspersky Registry Editor from the utility list.
- Navigate to the corrupted registry hives (e.g., HKEY_LOCAL_MACHINESYSTEM).
- Locate and repair modified boot paths or malicious Shell entries (like explorer.exe modifications).
How This Would Help: Allows advanced users to manually reverse registry changes made by malware that prevent Windows from booting normally even after the malware is deleted.
Important Features
- Offline Scanning and Disinfection: Designed specifically for operating systems that are powered off, ensuring malware cannot actively resist removal.
- Bootable Media Support: Easily write the ISO image to a USB flash drive or CD/DVD to boot compromised computers directly.
- Windows Registry Editor: Includes an integrated registry editor allowing advanced users to manually repair critical system settings and boot paths.
- UEFI SecureBoot Support: Fully compatible with modern hardware configurations, including UEFI SecureBoot, ensuring seamless booting on newer PCs.
- Kaspersky Security Network: Leverages cloud-based threat intelligence to detect the latest adware, riskware, and zero-day threats.
- System File Protection: Prevents accidental deletion of critical Windows system files during the disinfection process to avoid OS corruption.
What’s New in Current Version
- Support for the latest hardware.
- Support for UEFI SecureBoot.
- Scanning of all detected operating systems.
- Use of Kaspersky Security Network.
- Detection of Adware and Riskware.
- Notifications about obsolete antivirus databases.
- Protection against system file deletion.
- Prevention of false detections.
Technical Specifications
| Software Name | Kaspersky Rescue Disk |
|---|---|
| Version | 2026.09.20 |
| License | Freeware |
| File Size | 679 MB |
| Language | English, German, French, Russian, Spanish |
| Developer | Kaspersky |
| Homepage | https://support.kaspersky.com/krd18 |
| Last Updated | September 21, 2026 |
How to Install
Installation Steps
- Download the official Kaspersky Rescue Disk ISO image file to a clean, uninfected computer.
- Use a tool like Rufus or the Kaspersky Rescue Writer to burn the ISO image to a USB flash drive (minimum 1 GB).
- Insert the bootable USB drive into the infected computer, restart the PC, and enter the BIOS/UEFI settings.
- Change the boot order to prioritize the USB drive, save changes, and reboot to launch the Kaspersky Rescue Disk environment.
- Select your language, accept the license agreement, update the antivirus databases, and start the system scan.
Compatibility: Compatible with all modern x86 and x64 systems, supporting both legacy BIOS and UEFI SecureBoot configurations.
Questions & Answers
Is Kaspersky Rescue Disk free to use?
u003cpu003eYes. It is completely free to use as an emergency recovery tool to scan infected computers for malware and remove detected threats.u003c/pu003e
Does Kaspersky Rescue Disk require an internet connection?
u003cpu003eAn internet connection is not required to boot the rescue environment and scan the computer. However, an internet connection is required to download the latest antivirus database updates before scanning.u003c/pu003e
Can Kaspersky Rescue Disk remove malware without starting Windows?
u003cpu003eYes. It can boot from a USB drive or CD/DVD and scan the installed operating system from outside the normal Windows environment, making it useful when malware prevents Windows from starting correctly.u003c/pu003e
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