While macOS has already had this feature for quite a while now, Microsoft has finally brought it to Windows 10. You can use the new Cloud Download option to reset your PC to a default installation. And rather than reinstalling Windows 10 from the files on your local system, Windows will download the most updated version of the OS and install it on your device.
Not only does this feature make the process more streamlined, it also saves time on deploying updates afterward. Previously, the only way to do this was either to update Windows 10 before resetting your system, or creating new installation media.
Windows Subsystem for Linux 2
The sequel. Depending on who you ask, the Windows Subsystem for Linux 2 is the most important new feature in Windows 10 May 2020 Update. Version 2 of the WSL is even more powerful than the first one, and it uses a real Linux kernel to provide a more powerful and fully-featured Linux environment.
Microsoft has built its own Linux kernel and shipped it with WSL 2, and the company will keep it updated via Windows Update. You can even do that on your own, and easily build a Linux kernel and make Windows 10 use it.
Beyond that, you can expect some major improvements across the board, including what Microsoft calls dramatic file system performance increases, and full system call compatibility. This compatibility means that there is now support for technologies like Docker, which did not run on the original WSL.
You also get support for ARM64 devices here, meaning Windows Subsystem for Linux 2 now works on Windows on ARM PCs.