The Jiangmin KV2007 antivirus software CD has the function of booting into Linux for virus scanning. Its advantage is that it can perform a thorough virus scan without loading the Windows environment. The disadvantage is that it requires the assistance of a USB drive each time for virus scanning, and this USB drive needs to be prepared in advance under the Windows system, which is rather inconvenient. This article aims to discuss how to update the virus database on the Jiangmin antivirus software CD.