> For the complete documentation index, see [llms.txt](https://docs.migration-center.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.migration-center.com/25.3/installation-guide/prerequisites.md).

# Prerequisites

### Database Installer

To run the migration-center **Database** installer you need a **64-bit** **Java 8**, **Java 11** or **Java 17** installed and either the **JAVA\_HOME** or **JRE\_HOME** environment variables set.

{% hint style="warning" %}
Note that the **JAVA\_HOME** and **JRE\_HOME** variables should point to the **root install** folder of **JDK** or **JRE** and should **not** contain the **\bin** folder in the path.
{% endhint %}

### WebClient Installer

To run the migration-center **WebClient** installer you need **JAVA\_HOME** to point to a **64-bit Java 17**.


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