1. Turn off the laptop.
2. Turn off your WiFi, or take the laptop to an area where there isn't any WiFi. (If connected via Ethernet, unplug it.)
3. Turn on the laptop.
4. Once it fully loads, then turn on your WiFi again.
It should work now. Sometimes (especially in 10) updates, including those that come after a reset, can get the computer stuck. It happens when an update fails, for whatever reason, and the device continually tries to get it to install over and over. Leaving you 'stuck'. Until you take away its ability to continue trying the update, hence the no WiFi, then it should load.