Police evidence. Log or File about an attack

Hello everyone. I experienced a cyberattack on my computer, and the Avast Firewall detected and alerted me to pop-up messages. I intend to report the incident to the police for investigation, and they require me to have a log file containing details of this attack. The hard drive’s Windows boot trail has been corrupted, leaving me only able to access the folder and files as an external drive. I need assistance in locating the correct folder and file. I possess a screenshot displaying the Avast warning message, which occurred on January 4, 2024.