If you ever find yourself squinting to read text on your monitor screen or want to fit more windows on your desktop, you may be able to fix these problems by changing the resolution of your monitor. Changing the resolution changes the size of your computer desktop.
Flat-panel monitors support only a single resolution. If you change the default resolution of a flat-panel display, text will appear blurry.
Right-click the desktop, and then click Properties.
In the Display Properties dialog box, click the Settings tab.
Move the Screen resolution slider to the left to decrease the resolution of your monitor, making text and pictures appear larger. Or move the Screen resolution slider to the right to increase your monitor’s resolution, making text and pictures appear smaller.
Click Apply to have the new resolution take effect.
If the Monitor Settings dialog box appears, look at your display. If you like the new resolution, click Yes. If you do not like the resolution, click No, and return to step 3 to try a different resolution.