How to set Postgres path variable on Windows 10
The PATH contains directories, not the actual executable.
And programs are installed in c:\Program Files not c:\Windows\Program Files.
So you need to add c:\Program Files\PostgreSQL\9.6\bin to the path.
first, you have to set the path for this go to program files search for PostgreSQL folder then a folder come click on it then you will see bin folder click on there where the arrow is pointing you will get the path like this C:\Program Files\PostgreSQL\13 copy it
then left-click on this PC,Click on propertiesClick on the advance system setting on your left hand side a prompt is openthen click on an environment variable
Click on the path click on edit then click on new then paste this C:\Program Files\PostgreSQL\13
your environment is set then go to cmd type psql -U Postgres then type the passwordboom done