First you need to check if Windows is in S Mode. You can do this by:
Selecting the Start button > then select Settings > System > About. Under 'Windows Specifications' it will show you what version of windows your device is using.
If your device is in S Mode and you wish to switch out, simply follow the instructions from the following link: Switching out of S mode in Windows
Please note that switching out of S mode is one-way. If you make the switch, you won't be able to go back to Windows 10 in S mode. There's no charge to switch out of S mode.