Please feel free to follow this link: https://my.artec3d.com/applications, then click on 64-bit link near application that you need to download.
Depending on software type that is available to your my.artec3d.com account, you will see the links for corresponding products.
The latest versions are:
|Artec Studio 8||184.108.40.206|
|Artec Studio 9||220.127.116.11|
|Artec Studio 10||10.1.2.13|
|Artec Studio 11||18.104.22.168|
|Artec Studio 12||22.214.171.124|
Please note that Artec Studio 12 Trial is available to every account at my.artec3d.com except the ones that have access to full version of Artec Studio 12 - either Professional or Ultimate editions.