: Enter the following command in the terminal: sudo apt install nautilus -y

: Open your newly installed Ubuntu app from the Start menu and run: sudo apt update && sudo apt upgrade -y

If you find the WSL setup too complex or want a native application that feels like Nautilus, these Windows-based file managers are excellent choices: Run Linux GUI apps with WSL - Microsoft Learn

: Once installed, simply type nautilus in the Linux terminal to open the file manager. It will appear as a standard window on your Windows desktop. Native Windows Alternatives to Nautilus