-firewallapi.dll -80204 -

This combination often appears in Windows Update or Windows Security / Firewall contexts.

If the error persists despite all fixes, core Windows networking stacks may be damaged. Use the to install the same Windows version over the current installation (keep files and apps). This replaces all system DLLs, including firewallapi.dll . -firewallapi.dll -80204

Sometimes a domain or local policy restricts firewall modifications, returning -80204 . This combination often appears in Windows Update or