Hello, Amir Akramov
Welcome to the Microsoft Community.
Thank you very much for your feedback. I have carefully read the information and problem description you provided. You mentioned that you accidentally turned on the built-in hardware monitoring display.
I understand your current needs, please don't worry, I have given three mainstream methods to turn off the hardware monitoring display below, which may help you.
Method 1. If you are using an NVIDIA graphics card, you may have enabled the "in-game overlay" of GeForce Experience
Open GeForce Experience:
Find and open GeForce Experience in the taskbar notification area or through the start menu.
Click the "Settings" gear icon in the upper right corner.
Go to the "General" option and find "In-game Overlay" and turn it off.
Method 2. If you are using an AMD graphics card, you may have triggered the performance overlay feature of Radeon Software.
Open AMD Radeon Software:
Find and open AMD Radeon Software through the taskbar notification area or the start menu.
Click the settings icon (gear icon) in the upper right corner.
Go to the "Performance" menu, find the "Performance Monitoring" option and turn it off.
Method 3. The Game Bar that comes with Windows 10 and Windows 11 also provides a similar monitoring overlay function, which can sometimes be accidentally triggered by shortcut keys.
Open Game Bar:
Press the Win + G shortcut key to open the Xbox Game Bar.
Close each widget:
In the Game Bar interface, find the widgets for FPS counter, GPU, and CPU usage, and click the close button in the upper right corner of each widget.
Click Settings (gear icon) in the Game Bar interface to make sure that the performance monitoring content displayed by default is not enabled.
You may have other third-party monitoring software installed, which will also provide similar overlay functions. Depending on the software you have installed, please open these software, find the corresponding settings, and close them.
Best regards
Brian - Microsoft Community Support Specialist