Install ArcGIS Runtime SDK for Qt
Make sure you have read / write access to your desired download and extraction location. Also make sure your account has administrative privileges: installing ArcGIS Runtime SDK for Qt on Windows requires administrative privileges.
Go to your dashboard and select the downloads tab, and then select
You must log in with your ArcGIS for Developers account to access your dashboard and downloads. If you do not have one, sign up now, it's free.
Select the Windows download for the most recent version of ArcGIS Runtime SDK for Qt. Note that you can download older versions as well as other development platforms.