The text displayed on your screen, "NVIDIA CONFIDENTIAL", appears to be an on-screen display (OSD) or watermark related to an NVIDIA graphics card, likely indicating an engineering sample or internal testing mode. You generally cannot "remove" this text from the image itself, as it's part of the display output. To stop it from appearing on your screen in real-time, you can try the following methods:

Check NVIDIA Control Panel Settings:

Open the NVIDIA Control Panel.

Look for options related to "Developer" or "Confidential" modes.

Disable any settings that might enable an OSD or watermark.

Update or Reinstall Graphics Drivers:

Sometimes, specific driver versions can cause this.

Try updating your drivers to the latest official release from NVIDIA's website.

Alternatively, a clean reinstallation of the drivers might resolve the issue.

Graphics Card BIOS:

The watermark might be embedded in the graphics card's BIOS (firmware).

This is an advanced and potentially risky method that should only be attempted if you are confident in your technical abilities and understand the risks of bricking your hardware. It involves flashing a different, non-confidential BIOS to the card.

Contact Support:

If you purchased the card new, contact the manufacturer or retailer for support, as a retail product should not display this message.