[UPDATE]
I am embarrassed by what I wrote here earlier regarding Nmap behavior.
I found the cause and solution.
Zenmap works, but Nmap stops working and generates a set of error messages.
Nmap version 7.98 (https://nmap.org)
Platform: i686-pc-windows-windows
Compiled with: nmap-liblua-5.4.8, openssl-3.0.17, nmap-libssh2-1.11.1, nmap-libz-1.3.1, nmap-libpcre2-10.45, Npcap-1.83, nmap-libdnet-1.18.0, ipv6.
Compiled without: Available nsock engines: iocp poll select.
I should have configured the registry entry for IPv6 by adding "DisabledComponents" as a REG_DWORD with the value 0x20 to the following path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters.
However, I performed the following syntax in Command Prompt:
Then, I disabled "Internet Protocol Version 6" on the network adapter.
As a result, Nmap encounters an issue, and two email clients on my PC are unable to send outgoing messages to any destination. My internet provider's SMTP server returns a spam notification, rejecting further processing.
Nmap now works flawlessly. Thank you for understanding my mistake.
