# Opening MS Office documents display a warning message

You might see this error message when KONNEKT **Office Co-Authoring** is enabled.

![](/files/-MA68W386qIGW9EmVRcy)

## **Background**

The issue behind this warning is the restrictions of Microsoft site zones. 

## **Solution 1**

To prevent this warning, you need to add the server shown in the error message to the **Trusted Sites** **Zone** in the Internet Explorer setting.

## **Solution 2**

* Open either Word, Excel or PowerPoint on the desktop
* Select **File**
* Select **Options**
* Select **Trust Center**
* Select **Trust Center Settings**
* Select **Trusted Locations**
* Select **Add New Location...**
* Add the shown domain of your practice's OneDrive
* Checkmark "**Sub folders of this location are also trusted**"
* Click **OK** to save.

{% hint style="info" %}
More details can be found under "[Add KONNEKT paths as Trusted sites](/troubleshooting/add-konnekt-paths-as-trusted-sites.md)".
{% endhint %}


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