Jupyter Notebook has default startup directory, In most of the case after installation it's starting directory is under the user folder. If you want to change this default location to any user defined folder in any drive like "D:/MyAllNotebook/" you can follow the below easy steps too change it.
Step 1:
Click on start menu and type "Jupyter", you will see the jupyter App icon like below -
Step 2:
Right Click on Jupyter App Icon and choose "Open file location", It will open file explorer below
Step 3:
Select Jupyter Notebook file and right click and select property option. It will open property dialog box.
In target edit box you can see the text like "%USERPROFILE%/"
Replace this "%USERPROFILE%/" text to your desire path like this "D:/MyAllNotebook/"
Step 4:
Restart Jupyter Notebook App again - Now it will land to your specified location like below
