I recently had to set up a new Windows 11 environment and decided to document the steps needed to install Zsh since I will inevitably forget the next time this happens:

1. Install git bash and note the installation directory

   (C:/Program Files/Git).

2. Download zsh and extract the

   etc/

   and

   usr/

   directories into the installed

   Git

   directory. Note: Windows 11 supports Zstandard decompression so there's no longer a need to use other archive software.
3. Add the following to

   .bashrc

   in the user home directory:

       if [ -t 1 ]; then
       exec zsh
   fi
   

Optional: That's it! Installing Zsh on Windows 11 is a relatively straightforward process compared to previous versions of Windows.