How to Clean a Boot Virus
A boot virus is a computer virus that is capable of infecting the boot sector of disc you create using the infected computer. As a result, any computer that uses a disc with a boot virus could become infected. If your computer already has a boot virus, it secretly resides in your computer memory (similar to a rootkit). A boot virus can be removed from your computer. However, discs that are infected with a boot virus are--for the most part--incurable.
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Instructions
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ESET Online Antivirus
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Open your web browser.
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Enter "eset.com/onlinescan/" (without the quotes) into the address bar.
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Click the "ESET Online Scanner" button in the middle of the screen. If you're using Internet Explorer, the scan will begin immediately. If you're using another browser, you will be prompted to download a small ESET installer program before the scan begins. After the installation is complete, the scan will begin.
ComboFix
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Download the ComboFix program from the "Resources" link, below.
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Click the "exe." file to start the program. ComboFix does not require installation. Click "Run."
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Click "Yes" to accept the terms of use.
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Download Windows Recovery Console if prompted (if you are not prompted, skip to the next step). Click "Yes." ComboFix will automatically download and install the Windows Recovery Console.
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Click "Yes" to begin the scan. Be patient as this will take a few minutes. ComboFix will automatically restart your computer. After the restart, a textlog displaying all of the found and deleted viruses is displayed. This includes the boot virus.
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