This update took down two of my laptops (one Lenovo and one MS Surface). The two desktops in the house are fine. Explorer won't open, Settings hangs, Task Manager hangs, CMD.EXE won't open most of the time... crippled both laptops. One I could uninstall the update and it is working fine now. The Surface was a total loss -- couldn't uninstall the update because the Settings app wouldn't load. I couldn't even get into a repair or recovery app to try to fix or undo it. Ended up having to format and reinstall windows from a USB drive. Obviously, I paused updates on both laptops for now...