According to the inquiry of Siyue Education, the virus that antivirus software can't kill is the virus on CD-ROM. The virus on the CD can't be deleted, because the CD can't be written and the antivirus software can't completely delete the virus.

Anti-virus software, also called anti-virus software or anti-virus software, is a kind of software used to eliminate computer threats such as computer viruses, malicious software and Trojan horses. Its basic functions are as follows: anti-virus. Prevent viruses from invading computers and find viruses. Scan the programs or files run by the computer for viruses, and report the virus name accurately by comparing with the virus database. Remove virus. Modify the infected object according to different types of viruses and restore it according to its infection characteristics.