The Linux distribution Q4OS has introduced a feature that allows users to experience the Windows XP interface, along with other Windows versions, within a Linux environment. Users can download the free Q4OS distribution and install the XPQ4 graphical user interface (GUI) to activate various Windows-like interfaces, including Windows 2000, Windows 7, Windows 8, and Windows 10. A live installation option via USB is available, allowing users to try the experience without installation by downloading the ISO file for XPQ4, referred to as FreeXP. Users can create a bootable USB stick using tools like Rufus or balenaEtcher, and upon booting, they will encounter the FreeXP or Free10 interface. The default login credentials for Q4OS are “adminq” with a blank password, and users can customize the language during startup. The XPQ4 environment allows users to switch between different Windows versions using the ‘XPQ4 Desktop Styles’ tool. The operational experience is designed to feel familiar to Windows users, with features for easy software installation and personalization. Installing Q4OS with XPQ4 involves selecting ‘Install Q4OS’ and following an installation wizard that includes options for language, keyboard model, and user account setup. After installation, users can log in with their new credentials and use a Linux environment that resembles Windows XP.