Issue installing Avast Business Pro Plus

Hello,

Please can someone help to guide on installation of Avast Business Antivirus Pro Plus. I was able to download, begin installation process, but it takes forever to finish installation at the stage; Your Avast Business Security installation is in progress Do not turn off your computer )- showing at the bottom right corner of the screen). Please what do I need to do to complete my installation process and enjoy Avast services.
Thank you.

https://forum.avast.com/index.php?board=77.0