Thank you for reaching us.
I have checked your download history and it seems you have downloaded the UI for ASP.NET AJAX
product installer. As the Demos
feature for this product uses separate installer I would recommend you to download it from your Telerik
account and install it. The following quick steps will guide you through the process:
- Navigate to the following product page: https://www.telerik.com/account/product-download?product=RCAJAX
- Download the Telerik_UI_for_ASP.NET_AJAX_2018_1_117_Demos_Dev.msi (latest product release) installer and launch it
- Follow the installation steps
This will install the Demos feature of the UI for ASP.NET AJAX
Let me know if your case is different.