Turning off Windows firewall is required sometimes on a proxy network to allow the communication.
1.Select Windows Firewall icon in control panel as shown above.
select turn windows firewall on or off as shown in the above image.
So the above steps will guide in turning off the firewall.
In fact, the firewall provided by Microsoft Windows will not cause any issue for communication with Microsoft update servers or office servers.
Sometimes, the firewall is overruled by Antivirus programs which may create an issue.
Follow the other help articles to temporarily disallow the firewall.