Git Bash is a command-line tool that allows you to run Unix commands on a Windows computer.
1. Open the website: https://git-scm.com/downloads
2. Click on Windows link:
3. Click on link ‘Git for Windows/x64 Setup’:
4. Git exe file will be downloaded: 
5. Double click the exe file and installation will start:
Click Next.
6. Installation will start:
7. After 1-2 minutes, Git Bash is installed: 
8. Congrats! you have installed the Git Bash successfully.