Hi Nori-chan,

Begin all operations in administrator mode.

Turn off AIS firewall>restarting system>should automatically start Windows firewall. AIS firewall should now be off.

If windows firewall is running> turn on AIS firewall>restart system, again whilst in administrative mode.

Backup all personal files before proceeding as there is always a chance, albeit a slim one, your system will not arrive at the desktop as it usually does.

It is not necessary to have both firewalls running and in some cases is not advised.