The present invention provides a variety of methods for reducing non-specific binding of a target molecule or plurality of target molecules to an array of oligonucleotides. The trigger is configured so that a hook portion thereof is held to be swingable by the body, a turned-down portion of an extension portion, which is an elastic portion integrally extending from a swinging portion of the hook portion, is held with respect to the body, and a tip end of the extension portion is positioned to be capable of coming into contact with the hook portion. The beneficial effects of the present invention lie in that the latest antivirus software can be updated when the computer is started, thus ensuring the system security and antivirus efficiency. The fastening collars slideably couple to the latch bar. The comparison module compares the error code value to an associated error code in the error code dictionary.