Office error code KB3020370

How to resolve Office error code KB3020370.


To resolve Office error code KB3020370 please follow simple instructions in this document.


Office error code KB3020370


1. Disable Windows Firewall.

1. Go to Control Panel and click on Windows Firewall.

Office error code KB3020370

2. Click on Turn Windows Firewall on or off.
Note: You will need Admin privileges to enable or disable Windows Firewall.

Office error code KB3020370

3. Click on Turn off Windows Firewall (not recommended) under each active network connection.

Office error code KB3020370


How to resolve Office error code KB3020370.


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2. Reset Internet Explorer Security settings.

1. Click on Start button.

Office error code KB3020370

2. Type inetcpl.cpl and click OK button.

3. Click on Security tab.

Office error code KB3020370

4. Click Reset all zones to default level button at the bottom of the window.

5. Click OK.


3. Temporarily disable antivirus.

1. Open antivirus settings window.
2. Disable scan / security till Office installs. If required check with antivirus manufacturer website for more details.


Note: If the issue is still not fixed please initiate a CHAT SESSION with our Technical expert. Our Technical experts will be glad to assist you.


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