Used to fix an issue related to Microsoft Surface Pro 3's not rotating when the rotation lock is off.
There is an issue regarding Microsoft’s Surface Pro 3 in which the driver responsible for installing the motion sensor driver is corrupt. The following instructions will describe how to reinstall the driver, fixing the problem.
Before continuing, check to see if the rotation lock is enabled. This can be found pressing the ‘Windows’ and ‘A’ keys together, then clicking expand in the newly opened menu. Remove the tablet from the keyboard and check to see if the “rotation-lock” setting is disabled. If enabled, disable the setting by tapping it then attempt to rotate the screen.
If the “rotation-lock” setting is disabled, do the following:
Tap the ‘Windows’ key to open the start menu, then type in “Device
Manager” without the quotations