Open Display Settings by clicking the Start button View Full Image , clicking Control Panel, clicking Appearance and Personalization, clicking Personalization, and then clicking Display Settings.
Under Resolution, move the slider to the resolution you want(1920x2000), and then click Apply.
Click Advanced Settings.
Click the Monitor tab, and then select a new refresh rate(60 Hz). The monitor will take a moment to adjust. If you want to keep the changes, click Apply. If you don't apply the changes within fifteen seconds, the refresh rate will revert back to your original setting.
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