1. An antivirus computing system comprising: a storage device having an operating partition that has stored therein a to-be-scanned file, and a hidden partition that has stored therein a virus code; and an antivirus device associated with said storage device, and configure to perform a virus scan on the to-be-scan file in said operating partition based on said virus code in said hidden partition; wherein said antivirus device includes an antivirus processing unit configured to perform the virus scan on the to-be-scanned file according to an antivirus program and based on the virus code; said antivirus computing system further comprising a processor coupled to said antivirus device, and a display device coupled to said processor, said operating partition further having stored therein a read-only user-interface program that, when executed by said processor, causes said processor to enable presentation of a user interface on said display device, to receive an access request through said user interface, and to generate, in response to the access request, a password confirmation request for confirming a program/code update password that is used to control updating of the antivirus program and the virus code.