Keep your system clean with an antivirus or antimalware program. It usually works. There is more malware out there than ever before, despite improved security programs. In the presence of a human, malware can slip through.

In that case, you can use a free bootable antivirus disk. As with a Linux Live CD or USB, bootable antivirus disks are malware removal environments. Listed below are eight Best Free Bootable Antivirus disks you should check out.

1.     1.Kaspersky Rescue Disk

It is one of the best free antivirus boot disks, allowing you to scan an infected machine efficiently. As part of the Kaspersky Rescue Disk scanner, you can scan individual folders, startup objects, system drives, and lifeless objects. You can also scan your boot sectors to find stubbornly hidden malware.

However, the Kaspersky Rescue Disk includes various additional tools, such as Firefox, a file manager, etc. Kaspersky Rescue Disk also offers a graphic or text-based interface.

1.     2. Bitdefender Rescue CD

Bitdefender Rescue CD is similar to Kaspersky's offering. It comes with several antivirus options and an easy-to-use interface to help you determine what's wrong. The scanning interface offers many options, including excluding certain types of files, scanning archive files, scanning files below a specified size, or dragging and dropping individual files. 

However, in most cases, the standard scan is sufficient for ensuring your system is malware-free. In addition to Firefox, the Bit defender Rescue CD contains a file browser, disk recovery program, and a few other tools.

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1.     3. Avira Rescue System

This bootable antivirus rescue disc relies on Ubuntu. Among the most popular bootable antivirus environments for beginners, the Avira Rescue Disc comes with a handy guide. Another benefit of this is that a beginner has less chance of turning off parts of the scan and missing malicious files.

Avira Rescue System has a streamlined interface of labeled boxes, making it easy to navigate. In addition to the other options, Avira Rescue System includes a web browser and a disk partitioning tool. Avira is an Ubuntu-based rescue disk, so it is also compatible with Linux systems.

1.     4. Trend Micro Rescue Disk

Despite being the smallest free bootable antivirus disk on this list, the Trend Micro Rescue Disk delivers a strong punch that helps you regain control of your computer. The text menus are easy to navigate in practice since the Trend Micro Rescue Disk is so big (around 70MB at the time of writing).

1.     5.Dr.Web Live Disk

The bootable antivirus environment that Dr.Web Live Disk offers a wide range of scanning options despite it’s slightly suspect name. Dr.Web's scanning options are extensive when compared with alternatives.

A user can select file types and sizes for inclusion and exclusion. For instance, you can set individual actions for rootkits, dialers, adware, and so on. You can also use Dr.Web Live Disk to scan Linux systems.

1.     6. AVG Rescue

AVG is a well-known name in the security space. You can customize the scanning process.

In addition, you can scan specific files within a volume or mount a particular Windows volume for scanning. In addition to examining the Windows Registry, you can scan Windows Startup objects as well. AVG Rescue also comes with diagnostic and analytical tools allowing it to analyze drivers instead of just malware.

1.     7. ESET SysRescue Live

The ESET SysRescue Live bootable antivirus disk is an advanced antivirus rescue disk that comes with many features.

SysRescue Live includes a powerful antivirus scan feature. Use ESET scan profiles to scan archives, email folders, symbolic links, boot sectors and more. It also contains a disk analysis tool for checking for defects and other errors and a memory test tool for checking you’re RAM for errors.

It also comes with several handy tools, including a browser, a partition manager, a remote access tool, and TeamViewer.

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1.     8.Comodo Rescue Disk

Last but not least, you can boot from the Comodo Rescue Disk. Comodo's antivirus disk has a good reputation as an antivirus and security outfit.

Smart scans, full scans, and custom scans are available. With the advanced scan, you can discover rootkits and other threats lurking in boot sectors, while the custom scan can examine specific files and folders.