Many of the best antivirus providers offer a free bootable recovery disk for disinfecting your computer after an infection. These are Linux-based tools that can be used to clean any computer that is infected by malware when it isn’t able to boot up or cannot be scanned by an antivirus program that is running on Windows. I recommend the Kaspersky disc for its simplicity of use (though it may not work on some Dell systems).
You can also get similar features using the Avira or ESET rescue disks. They have an interactive interface, but require an external USB or CD drive to start. Both of these options will analyze and detect malware that is on your computer, though their virus definitions aren’t updated as regularly as the look at this now Linux-based rescue disks.
The Trend Micro Rescue Disk is a great alternative. It’s also one of the most compact disks on the list, with a size of around 70MB. It doesn’t have a graphical user interface but it works quickly and offers a few options for customization, including the ability to mount and scan specific volumes, files, and even specific folders.
The Comodo Rescue Disk is an excellent choice for a virus scan but it isn’t as flexible. the same flexibility as the Linux-based options. It is a very effective tool to detect and eliminate the type of viruses that can hide in Windows files, which prevents detection by antivirus software that is normally used. You can select to use a text-only interface or a full-graphic interface. You can also conduct a smart scan or a custom scan.