Turn Off Test Mode in Windows 🔥 Fix Test Signing with One CMD

What the Test Mode Watermark Means

If you see "Test Mode" written in the bottom-right corner of your desktop, along with your Windows edition and build number, your PC is booting with test signing enabled. In this mode Windows allows drivers that are only test-signed to load, instead of requiring a proper Microsoft-recognised signature. It is normally switched on deliberately during driver development or testing — but it sometimes gets left on by tools or tweaks, and then the watermark just stays there.

The watermark itself is harmless, but the mode behind it is a weaker security setting, so unless you are actively testing drivers, it should be turned off. That takes a single command.

Open Command Prompt as Administrator

BCDEdit changes boot configuration, so it only works from an elevated prompt. Click Start, type cmd, right-click Command Prompt and choose Run as administrator. Approve the UAC prompt. If the window title says "Administrator: Command Prompt", you are in the right place — running these commands in a normal prompt will only give you an access error.

Check the Current Test Signing Status

Before changing anything, confirm that test signing really is on. Run this command to display the current boot entry:

bcdedit /enum {current}

In the output, look for the testsigning line. If it reads testsigning    Yes, test mode is active on this PC and the next step will switch it off.

Turn Test Signing Off with One Command

Now run the fix — this is the one CMD command from the video title:

bcdedit /set testsigning off

Press Enter and wait for the confirmation line:

The operation completed successfully.

That message means the boot configuration has been updated. The change does not apply to the session you are already in — it takes effect at the next boot, which is why the restart in the next step is not optional.

Restart and Verify the Watermark Is Gone

Restart the PC normally. When the desktop loads, the Test Mode watermark in the corner should be gone — that is the visible proof the fix worked.

To double-check, open the admin Command Prompt again and re-run bcdedit /enum {current}. The testsigning value should now read No (or the line may no longer appear at all). Your PC is back to loading only properly signed drivers.

Turn It Back On Only If You Really Need It

If you later genuinely need test mode again — for example, you are developing or testing an unsigned driver — the reverse command switches it back on, followed by a restart:

bcdedit /set testsigning on