How does Win10 turn test mode on and off? How to turn test mode on and off

Recently, after upgrading to the Win10 system, users found that there is a watermark in the lower right corner of the desktop that is “test mode”. Why is there a watermark for this "test mode" What is this test mode? Can you turn it off? But just don't know how to close it! Maybe after reading the following content, I know how to close it.

The steps are as follows:

First, open the Win10 test mode

1. Right click on the Start button and select Command Prompt (Admin);

2 After opening the command prompt, type: bcdedit /set testsigning on Enter;

3. After restarting the computer, you will find the watermark of the test mode in the lower right corner of the desktop.

Second, close the Win10 test mode

1. Right click on the Start button and select Command Prompt (Admin);

2. After opening the command prompt, enter : bcdedit /set testsigning off Enter.

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 programs. Can be turned on or off, there are methods for reference.