1. NVIDIA graphics card solution:
1. Right-click the desktop, and click "NVIDIA" in the pop-up menu. Then, go to the "control center", as shown in the following figure;
2. On the nvidia page, click "Change flat display scaling". The following figure shows the effect;
3. Click "use NVIDIA scaling" to select it. The effect is as follows.
II. ATI video card solution
1. Right-click the blank area on the desktop, and then click "ATI control center" in the pop-up window, as shown below;
2. Go to the control center. Click "Notebook Panel properties"-"zoom options" and select "full screen.
III. Intel graphics solutions
1. Select INTEL graphics attributes;
2. In the pop-up window, click "Display Settings". The details are as follows;
3. Select "full screen (no border)" and click "OK.
3. Modify the registry
Log on to the registry editor, go to HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Control/GraphicsDrivers/Configuration, expand all the following items, and double-click the "Scaling" name in the right window, change the value from 4 to 3.