How to close the Win10 system preview version 10586 test mode?

Recently, after the release of the Win10 system preview version 10586, many computer users have upgraded this version. However, after upgrading the Win10 system preview version 10586, the user will find that the watermark in the lower right corner of the computer desktop will be “test mode”, then how can the user remove the “test mode” watermark? Get up and learn about the Win10 test mode!
What is the Win10 test mode?
System test mode refers to the system disable driver forced signature mode, used to turn off the system driver signature, install some unsigned drivers and program.
How to close Win10 test mode
1, right click on the start button, select command prompt (admin);

2, open the command prompt, enter: bcdedit /set testsigning off Car;

After the carriage return is executed, you can exit the test Win10 mode!
The above is about the Win10 test mode and the method of turning off the Win10 test mode. After the Win10 test mode is closed, it appears on the desktop. The watermark in the lower right corner will disappear.