1. A method for neutralizing a software-blocking computer operation performed by ransomware, the method comprising: connecting a separate antivirus activation device to a computer, wherein the device comprises connectors for connection to a control bus, a controller providing the device operation hardware and software logical circuitry and communicating via the control bus, and an activation unit; receiving, at the activation unit of the separate antivirus activation device, an indication to neutralize the ransomware, wherein the indication is not initiated via an input device of the computer; transmitting, from the activation unit of the separate antivirus activation device, an activation signal for an antivirus software stored on the computer; and activating, without resetting the computer and without losing unsaved current user data, a computer unblocking and malware neutralizing procedure, wherein said computer unblocking and malware neutralizing procedure comprises: examining OS graphics subsystem state, searching for all the created windows and desktops viewed by the user; analyzing all the processes and flows executed with the PC at the time of infection; creating bindings on the collected data basis for each said window and desktop to a particular process and/or process hierarchy; analyzing the obtained data on the processes and identifying in each of them loaded modules involved in process running; searching for the software automatically run in the course of OS start-up; compiling a list of the objects considered as malicious; isolating each malicious object, deleting its links out of OS configuration files, and aborting the malicious process produced by the object.