Unable to connect to server could not connect to server Connection refused Is the server running

When i was working in postgreSQL server and pgAdmin i got an error as shown below Unable to connect to server: could not connect to server: Connection refused (0x0000274D/10061) Is the server running on host "localhost" (::1) and accepting TCP/IP connections on port 5432? could not connect to server: Connection refused (0x0000274D/10061) Is the server running on host "localhost" (127.0.0.1) and accepting TCP/IP connections on port 5432? So in the above video i explain how to fix the error Unable to connect to server could not connect to server Connection refused Is the server running on host "localhost" (::1) and accepting TCP/IP connections on port 5432 I used postgreSQL 12 Server pgAdmin 4 Run window on windows operating system services.msc