> For the complete documentation index, see [llms.txt](https://docs.infotopics.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.infotopics.com/mailscheduler/3.x/installation-guide/getting-started/windows.md).

# Windows

Download the zip file from the portal to the machine. In the zip file is a MailScheduler`.exe` file that needs to be **extracted** to a proper location. Like C:/MailScheduler/ for example.

In case of upgrading, the .exe file needs to be copied to the directory where the current installation is.

{% hint style="info" %}
If you are upgrading from a older version then 4.x please follow the [upgrade guide](/mailscheduler/3.x/installation-guide/upgrade.md).
{% endhint %}

Run the `MailScheduler.exe` as administrator to start the installation.

When the application GUI has been started continue to the next step:

{% content-ref url="/pages/MxZc6XyaGIOIv05EWwpR" %}
[Installation wizard](/mailscheduler/3.x/installation-guide/installation-wizard.md)
{% endcontent-ref %}


---

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