And check that these paths are correct – you may have Git installed on a different drive, or under Program Files (x86). Correct the paths if necessary.
Program Files (x86)
Right-click "Computer" on the Desktop or Start Menu.
On the very far left, click the "Advanced system settings" link.
Click the "Environment Variables" button at the bottom.
Double-click the "Path" entry under "System variables".
At the end of "Variable value", insert a ; if there is not already one, and then C:\Program Files\Git\bin\;C:\Program Files\Git\cmd\. Do not put a space between ; and the entry.
C:\Program Files\Git\bin\;C:\Program Files\Git\cmd\
Close and re-open your console.
If you are using GitHub for Windows (GitHub's old Git GUI that is no longer available for download, not the new Electron-based GitHub Desktop), you have an installation of Git under:
Expand this path, and add it to PATH.