As important as it is to have antivirus software installed on your computer, there are times when a virus can infect your system to the point that it becomes impossible to boot normally. In these cases, you need a bootable antivirus tool that can scan and remove any viruses or malware before your operating system loads. Here are some of the best free bootable antivirus tools available on the internet.

Avira Rescue System: The Avira Rescue System is an impressive antivirus tool that can be downloaded from the Avira website for free. After downloading and creating a bootable media (CD or USB drive), you can use it to scan your system for viruses, spyware, and other malware.

Kaspersky Rescue Disk: Kaspersky Rescue Disk is an effective bootable antivirus tool that can detect and remove malware, viruses, and other threats. This tool is available as an ISO file that can be burned to a CD or USB drive.

Bitdefender Rescue CD: Bitdefender Rescue CD is one of the best free bootable antivirus tools available. It is designed to remove malware, viruses, and other threats from any system that cannot boot normally. Bitdefender Rescue CD is a self-contained tool that does not require any installation or updates.

AVG Rescue CD: AVG Rescue CD is a comprehensive antivirus tool that can run from a CD, DVD, or USB drive. The tool scans your entire system for viruses, spyware, adware, and other malware. It also includes a utility to recover deleted files and folders.

ESET SysRescue: ESET SysRescue is another bootable antivirus tool that is available for free. It scans your system for viruses and other malware and removes them if found. It also includes tools to repair damaged files and restore your system back to its original state.

In conclusion, the above-mentioned applications are some of the best free bootable antivirus tools that you can use to scan and remove viruses from your system. To ensure the safety of your computer, it is always a good practice to have at least one of these tools available, especially in case of emergency. Always keep your antivirus software up to date and regularly carry out system scans to protect your system from malicious software.