I need to install dot net SDK 5 but first, I need to know which versions of SDK installed on my system. So, use dotnet --info . This command will display the SDKs and also runtimes installed on your system with path together where they are installed. For example on my Windows 10 development machine, dotnet --info Microsoft Windows [Version 10.0.18363.1082] (c) 2019 Microsoft Corporation. All rights reserved. C:\WINDOWS\system32>dotnet --info .NET Core SDK (reflecting any global.json): Version: 3.1.101 Commit: b377529961 Runtime Environment: OS Name: Windows OS Version: 10.0.18363 OS Platform: Windows RID: win10-x64 Base Path: C:\Program Files\dotnet\sdk\3.1.101\ Host (useful for support): Version: 3.1.8 Commit: 9c1330dedd .NET Core SDKs installed: 1.0.0-preview2-003131 [C:\Program Files\dotnet\sdk] 1.0.4 [C:\Program Files\dotnet\sdk] 2.1.508 [C:\Program Files\dotnet\sdk] 2.1.801 [C:\Program Files\dotnet\sdk] 3.1.101 [C:\Program Files\d