# Prerequisites

To run the migration-center **Database** and **WebClient** installers you need a **64-bit** **Java 8** or **Java 11** 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 %}


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