If you cannot access the shared directory from another system, file and printer sharing may not be enabled.
You can activate it as follows:
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Right-click the network icon in the notification area of the taskbar to open the "Network and Sharing Center."
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In the "Network and Sharing Center" open the "Advanced Sharing Settings."

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Select the profile you are using. This is indicated by the addition "(current profile)."

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Make sure that the "Turn on network discovery" and "Turn on file and printer sharing" settings are enabled.
