How to launch the Windows test mode?

Sometimes I don’t know where it’s causing the system to display the test mode and version number in the lower right corner after booting. Baidu searched, it seems that many people have not solved this problem, the test mode is generally used for test personnel test. The driver uses, in fact, a command can be quit. But how can I enter the test mode for no reason? I do not know either. . .

Step 1:

Windows 8/8.1: Win+X+A, open the administrator mode command prompt;

Windows 7/Vista: Start - Attachment - Command Prompt & ndash; Right click to run in admin mode.

Second Step:

Open the command prompt and enter "ldcd;bcdedit /set testsigning off" (without quotes), enter and press Enter, prompt to restart after the operation is completed, as shown below Win8 /8.1 and Win7:

The third step:

No, after rebooting, you will find that you are in normal mode.

Okay, this problem is so simple to solve 喽

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