Select the rate in Advanced display
Windows exposes supported modes per display; changing the monitor OSD alone does not select the Windows rate.
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Set a high-refresh monitor to 120, 144, 165, 240 Hz, or its supported rate and diagnose why faster modes are missing.
Windows may default to 60 Hz even when the monitor supports more. First select the correct display in Advanced display and compare desktop mode with active signal mode.
Open Settings → System → Display → Advanced display and choose the high-refresh monitor.
Select the desired rate and confirm both Desktop mode and Active signal mode.
Compare plugged-in and battery operation. Disable Dynamic Refresh Rate or OEM display saver only for the test.
If the rate is absent, test native resolution in SDR/8-bit through a direct GPU-to-monitor connection.
Install current GPU and monitor/OEM drivers, then restart and recheck the mode list.
Windows exposes supported modes per display; changing the monitor OSD alone does not select the Windows rate.
Confirm both endpoint ports, any adapter, and the cable support the combined resolution, refresh, bit depth, and chroma.
The monitor can support a rate without Windows currently sending that timing.
Windows Dynamic Refresh Rate and OEM power tools can lower the panel rate to save energy.
Microsoft Support. Advanced display path, per-display selection, and Dynamic Refresh Rate behavior.
Reddit Monitors. Symptom variants involving battery saver and third-party display policies.