In order to open VSCode in a specific folder, I used to Right Click the folder with SHIFT help down then choose Open PowerShell Window Here, then type code .
But, it turns out you can add Open in Visual Studio Code much easier if you choose the option in the Visual Studio Code installer.
If you have VSCode installed or not, just run the installer again. You can get it here.
Select these options:
Now, when you right click a folder in Windows Explorer (SHIFT is not needed) you can choose the option:
When you hold the SHIFT key down, you’ll get more options: