To disable your antivirus, open your antivirus software and find the option to disable it temporarily. For Windows Defender, go to Settings > Update & Security > Windows Security > Virus & threat protection > Manage settings, then toggle off Real-time protection. For the firewall, go to Control Panel > System and Security > Windows Defender Firewall > Turn Windows Defender Firewall on or off, and select Turn off Windows Defender Firewall.