Microsoft is now making available Windows 10 build 19559 for devices enrolled in the Fast ring of the Windows Insider Program. This is the sixth update available for testers, and it’s a small update with changes expected to arrive in future releases of the operating system.

Windows 10 build 19559, according to the company, addresses hanging and crashes problems with File Explorer. It resolves user interface (top few pixels of a window getting clipped) using Snap Assist. Also, devices based on ARM processors, such as the Surface Pro X, can now install Hyper-V to create and use virtual machines.

In addition, this flight fixes a green screen in recent builds with error KMODE EXCEPTION NOT HANDLED.

Microsoft is listing the complete set of improvements, fixes, and known issues for Windows 10 Insider Preview build 19559 at the Windows Blog.

Download Windows 10 build 19559

Although there are no ISO files for Windows 10 build 19559, the update is available immediately through the Fast ring. This preview build will download and install automatically on your device, but you can always force the update from Settings > Update & security > Windows Update, and clicking the Check for updates button.