Note that: If you want to disable the Vista firewall, you must have another firewall or built in firewall on router, to protect your system.
Via the Control Panel
Start > Control Panel > Switch to classic view > Windows Firewall
Select Off (not recommended)
In command line
Start> Type the following command in the Search field:
Netsh firewall set opmode disable
Right Click on the Netsh firewall set opmode disable icon and Run as Administrator.
Note that: The command to reactivate the firewall is :
Netsh firewall set opmode enable
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