Where can I set path to make.exe on Windows?

Or you can just run this PowerShell command to append extra folder to the existing path:

$env:Path += ";C:\temp\terraform" 

The path is in the registry but usually you edit through this interface:

1. Go to Control Panel -> System -> System settings -> Environment Variables.
2. Scroll down in system variables until you find PATH.
3. Click edit and change accordingly.
4. BE SURE to include a semicolon at the end of the previous as that is the delimiter, i.e. c:\path;c:\path2
5. Launch a new console for the settings to take effect.

Here I'm providing solution to setup Terraform environment variable in windows for beginners.

1. Download the terraform ZIP file from Terraform site.
2. Extract the .exe from the ZIP file to a folder eg C:\Apps\Terraform copy this path location like C:\Apps\terraform\
3. Add the folder location to your PATH variable, eg: Control Panel -> System -> System settings -> Environment Variables

In System Variables, select Path > edit > new > Enter the location of the Terraform .exe, eg C:\Apps\Terraform then click OK

5. Open a new CMD/PowerShell and the Terraform command should work