How to Install Windows Dot Net 3.5 & 4.5

Run these commands to check dot net 3.5:

PS C:\Windows\system32> import-module servermanager
PS C:\Windows\system32> get-windowsfeature web-asp-net

Display Name Name Install State
------------ ---- -------------
[ ] ASP.NET 3.5 Web-Asp-Net Available

Install ASP.NET 3.5:

PS C:\Windows\system32> install-windowsfeature web-asp-net 
Success Restart Needed Exit Code Feature Result
------- -------------- --------- --------------
True No Success {ASP.NET 4.8, Application Development, ASP...

Run this command to check dot net 4.5:

PS C:\Windows\system32> get-windowsfeature Net-Framework-45-Core

Display Name Name Install State
------------ ---- -------------
[X] .NET Framework 4.8 NET-Framework-45-Core Installed

If necessary, install DotNet 4.5:

add-windowsfeature Net-Framework-45-Core