Follow these steps Installation-
1. Open Visual Studio
2. Click on "Tools" Menu
3. Select "NuGet Package Manager"
4. Click on "Package Manager Console"
5. Execute following command
PM> Install-Package JustMock
6. Wait for completion messgae
Reference: https://www.nuget.org/packages/justmock
Check the documentation for usage
Telerik JustMock Manual[
^]
Hope, it helps :)