How to add a "open git-bash here..." context menu to the windows explorer?

I had a similar issue and I did this.

Step 1 : Type "regedit" in start menu

Step 2 : Run the registry editor

Step 3 : Navigate to HKEY_CURRENT_USER\SOFTWARE\Classes\Directory\Background\shell. If you don't have the shell key, create one.

Step 4 : Right-click on "shell" and choose New > Key. name the Key "Bash"

Step 5 : Modify the value and set it to "open in Bash" This is the text that appears in the right click.

Step 6 : Create a new key under Bash and name it "command". Set the value of this key to your git-bash.exe path.

Close the registry editor.

You should now be able to see the option in right click menu in explorer

PS Git Bash by default picks up the current directory.

EDIT : If you want a one click approach, check Ozesh's solution below

Step 1. On your desktop right click "New"->"Text Document" with name OpenGitBash.reg

Step 2. Right click the file and choose "Edit"

Step 3. Copy-paste the code below, save and close the file

Step 4. Execute the file by double clicking it

Note: You need administrator permission to write to the registry.

Windows Registry Editor Version 5.00
; Open files
; Default Git-Bash Location C:\Program Files\Git\git-bash.exe

[HKEY_CLASSES_ROOT\*\shell\Open Git Bash]
@="Open Git Bash"
"Icon"="C:\\Program Files\\Git\\git-bash.exe"

[HKEY_CLASSES_ROOT\*\shell\Open Git Bash\command]
@="\"C:\\Program Files\\Git\\git-bash.exe\" \"--cd=%1\""

; This will make it appear when you right click ON a folder
; The "Icon" line can be removed if you don't want the icon to appear

[HKEY_CLASSES_ROOT\Directory\shell\bash]
@="Open Git Bash"
"Icon"="C:\\Program Files\\Git\\git-bash.exe"


[HKEY_CLASSES_ROOT\Directory\shell\bash\command]
@="\"C:\\Program Files\\Git\\git-bash.exe\" \"--cd=%1\""

; This will make it appear when you right click INSIDE a folder
; The "Icon" line can be removed if you don't want the icon to appear

[HKEY_CLASSES_ROOT\Directory\Background\shell\bash]
@="Open Git Bash"
"Icon"="C:\\Program Files\\Git\\git-bash.exe"

[HKEY_CLASSES_ROOT\Directory\Background\shell\bash\command]
@="\"C:\\Program Files\\Git\\git-bash.exe\" \"--cd=%v.\""

And here is your result :

The easiest way is to install the latest Git from here. And while installing, make sure you are enabling the option Windows Explorer Integration.

Once you are done, you will get those options in whenever you right click on any folder.

Hope it helps.