A PowerShell script developed by GitHub user Anduin2017 allows users to create a new Windows 11 installation on an empty physical drive while retaining access to files and applications from the existing installation. The process requires running the script in an elevated PowerShell window, providing inputs such as the location of the empty drive and the edition of Windows to install from an ISO file. Users can continue using their PC during the installation, and upon completion, they can choose between the existing and new installations upon reboot. To set up necessary applications, users can customize PowerShell modules using a sample install.ps1 file from the GitHub project. This method is particularly beneficial for users relying on cloud storage solutions like OneDrive, as it allows for a refreshed operating system with minimal downtime and easy access to data. The streamlined approach is designed for users who frequently encounter Windows issues and need clean installations, enabling rapid replication of a base system with essential programs.