I have so far attempted to uninstall three separate devices by using the Device Manager and selecting to uninstall the device. (USB 3.0 controller, External Keyboard, and internal SD Card reader). The result is the same. The window comes up with the Uninstalling Device window with a sweeping green bar and... that's it. It will remain that way forever. I left it overnight the first time, and came back to it just the same in the morning.
This is an easily reproducible problem for me. I just have to attempt to uninstall any device listed in Device Manager and it happens.
I have restarted the computer several times. The result remains the same when trying to uninstall a device.
I have tried with my anti-virus disabled, as suggested vaguely by other support search results. This has yielded no positive result.
I contacted Microsoft's Live support and the chat yielded no solution except to teach me what to force quit in Task Manager to get rid of the hung Uninstalling Device window. The agent told me the solution would vary by device, but when every device yields the same problem I disagree, however, I do not have the money to subscribe to their additional support service tiers.
I am running Windows 10 Pro 64-bit on a Lenovo Y510P, which has been a terrible computer every step of the way.