Microsoft released Windows 10 Build 14269 to Insiders in the Fast Ring. If you are someone who installs the latest Insider builds and owns one of the latest Surface devices, you may face some issues with the latest build. Windows 10 Build 14269 introduces a new freezing issue which causes the Surface Book, Surface Pro 3 and Surface Pro 4 to hang and cause any input (keyboard, trackpad or touch) to stop working. This is, indeed, a major issue but this is expected on Insider Fast builds nowadays.
Nonetheless, if you face this issue, there is only one workaround and that is to force your Surface to hard reboot by holding down the power button. Microsoft stated:
We’re investigating an issue in which some Surface Pro 3, Surface Pro 4, and Surface Book devices experience a freeze or hang and all input such as keyboard/trackpad and touch do not work. The workaround is to hold down the power button to force the device to hard-reboot.
Microsoft will hopefully fix this issue with the next Insider Fast build. Until then, let us know in the comment section below if you have experienced this issue on your Surface device.