CoLinux Portable Ubuntu for Windows
Portable Ubuntu Remix for Windows (Pubuntu) is a project led by Claudio Cacsar Sánchez Tejeda, utilizing CoLinux (Cooperative Linux) to allow users to run a full Ubuntu Linux environment on top of Windows. CoLinux, a port of the Linux kernel, is an open-source virtual machine, which functions similarly to QEMU but is often praised for its superior performance.