mongod and mongo commands not working on windows 10

reference : Microsoft document

set your path like this

;C:\Program Files\MongoDB\Server\4.0\bin

this is worked for me.

For a Windows installation, by default you have to use the full path to the exe unless you add it to the PATH.

To add it to the PATH:

01) Get path to bin, something like: C:\Program Files\MongoDB\Server\4.0\bin
02) Press the Windows key, type env, select Edit the system environment variables
03) On the Advanced tab, click Environment Variables
04) In the User variables for xxxx section, select path and then click the Edit... button
05) Click New and paste your path with a trailing slash, eg:
C:\Program Files\MongoDB\Server\4.0\bin\
06) Click OK, OK, OK and restart your command window.
Source

The examples you have seen are probably based on UNIX installations which I think by default install mongo as a service (which Windows doesn't) and that is what is called in those examples.

To simplify startup and configuration on Windows, you can also install it as a service. See the Mongo documentation here and the "Configure Windows Service for MongoDB' section".

This will then allow you to start and stop Mongo by simply calling

net start MongoDB

Or

net stop MongoDB

To add it to the PATH:

Add Mongo’s bin folder to the Path Environment Variable Kindly check the link: here After adding bin folder to the path Environment Variable then simply type mongo in terminal it will start working