Are you looking to remove the test mode messaging from the Windows 10 desktop on your PC?
There is a function of Windows 10 called Test Mode which allows you to install and test drivers that haven't been digitally signed by Microsoft. This mode as the name indicates helps test software or drivers that are still being developed or haven't been certified yet. If you start up your PC and a message or watermark is visible saying Test Mode or Testing Mode, that indicates that the mode has been activated and is running on your PC.
The most common reason for this is the installation of some drivers that are still in their testing phase. You will either get a message in the lower left corner or a full screen message in gray.
(Figure.1 Test Mode Messaging)
To help resolve the issue, perform the following steps.
(Figure.2 PowerUser Menu)
bcdedit -set TESTSIGNING OFF
and then press Enter.
An error has occurred setting the element data. The value is protected by Secure Boot policy and cannot be modified or delete, reboot your comptuer. Use the F2 key to access the BIOS and deactivate the option Secure Boot. After booting into Windows, repeat the command.
testsigning offcommand should be enough to turn off the Test Mode.
Test Modemessage, then open the Command Prompt/PowerShell with administrator privileges again:
Bcdedit.exe -set loadoptions ENABLE_INTEGRITY_CHECKS
and then press Enter.Bcdedit.exe -set TESTSIGNING OFF
and then press Enter.
(Figure.3 Integrity Checks Window)
(Figure.4 No Test Mode messaging seen)
You can extract the Windows product key and redo the activation. The way to extract the windows activation key is to use the following command line wmic path SoftwareLicensingService get OA3xOriginalProductKey
(Figure.5 Windows 10 retrieve the product key)
After extracting the product key, simply enter the key back into the system and the system will clear the activation request.
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