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Problems with Operation during Use
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If you cannot start up a program or share files, this may be because the "Firewall
(Windows Firewall)" in the "Windows Security Center" is set to be enabled.
If this function is set to be enabled, damage from viruses and other attacks is reduced, but
some programs and functions cannot be operated.
To use the program or to share files or printers:
You can use programs or other functions without the effects of the Windows Firewall by
registering them as an exception in the Windows Firewall settings (it is not necessary to
disable the Windows Firewall).
Note, however, that if a program is registered as an exception, there is a risk of damage
from viruses or other attacks. Before registering a program as an exception, confirm the
program’s safety with the manufacturer or other reliable source.
A
Click [start] - [Control Panel] - [Security Center] - [Windows Firewall].
B
Click [Exceptions].
C
To register a network game or other programs as an exception:
Click [Add Program], click the program, and click [OK].
To set access through a specified port as an exception:
Click [Add Port], set the port, and click [OK].
To set a file or printer as an exception:
Add the checkmark for [File and Printer Sharing].
D
Confirm that there is a checkmark for the item to be set as an exception, and
click [OK].
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The Windows Firewall is a security function designed to protect your computer from unau-
thorized access via the Internet and other external networks.
The firewall regulates the data exchanged between the computer and the network, so that
only approved data can pass through. We recommend that you use your computer with
the Firewall enabled to minimize damage from viruses and other malicious attacks.
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When installing additional commercially available firewall software, we recommend that
you disable the Windows Firewall settings, as the new software may interfere with the
Cannot start a network-used program, or cannot share files or
printers
Is it necessary to enable the Windows Firewall?
