Avira Rescue System 2025
Ubuntu-based bootable antivirus for scanning and repairing infected Windows systems
Download Avira Rescue System
Bootable ISO image for malware removal and system repair
Filename
rescue-system.iso
Size
~1.2 GB
Format
ISO Disk Image
License
Freeware
About
Avira Rescue System is a free bootable antivirus solution designed to scan and repair Windows computers that have become severely infected with malware or won't boot properly. Built on a customized Ubuntu Linux platform, it provides a safe, isolated environment where viruses cannot run or hide, making it highly effective against rootkits, ransomware, and other persistent threats. The rescue system includes Avira's award-winning detection engine, a file manager for data recovery, and tools for editing Windows registry settings - all accessible without needing to start your infected operating system.
Key Features
Linux-Based Safety
Runs on Ubuntu platform where Windows malware cannot execute or interfere with scanning
Multiple Scan Modes
Quick scan, selective scan, or full system scan options to match your needs
Daily Updates
Virus definitions updated multiple times daily for protection against latest threats
File Recovery
Built-in file browser to backup important data from inaccessible drives
Registry Editor
Manually repair Windows registry settings without booting into Windows
Remote Support
Integrated TeamViewer client for remote assistance and repair sessions
How to Use
1
Download the ISO
Download the Avira Rescue System ISO file (~1.2 GB) on a clean, uninfected computer
2
Create Bootable Media
Burn the ISO to a DVD or create a bootable USB drive (4 GB minimum) using tools like Rufus or Etcher
3
Boot from Media
Insert the USB/DVD into the infected PC and boot from it. You may need to disable Secure Boot in BIOS/UEFI settings
4
Accept License Agreement
The system boots into a custom Ubuntu desktop. Accept the Avira EULA to access the scanning tools
5
Update & Scan
Connect to the internet, click Update to get latest virus definitions, then run Quick, Selective, or Full scan
System Requirements
1 GB RAM minimum
4 GB USB drive or DVD
BIOS/UEFI boot support
Secure Boot disabled
Internet for updates
Important Notice
Always download Avira Rescue System on a clean, uninfected computer. Creating bootable media on an infected system may compromise the rescue disk. Back up important data before running any malware removal operations. You may need to disable Secure Boot in BIOS/UEFI to boot from the rescue media.
License Information
Avira Rescue System includes a built-in product license valid for 12 months. After expiration, simply download a fresh version from this page to continue using the tool with updated virus definitions.