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If an HDR calibration profile seems to reset after a Windows 11 reboot, first check whether it disappeared, is still listed but no longer the default, or only looks ineffective when HDR is active. Those are different symptoms, and Microsoft’s public guidance does not identify one universal cause or guaranteed fix for reboot-related profile loss.
First determine what “resetting” means
Before changing settings, note what happens on the affected display:
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- The profile is absent: It is not visible in the selected display’s profile list. The available Microsoft guidance does not establish why a profile might be missing.
- The profile is still listed but no longer selected as default: The profile may remain installed while its assignment has changed.
- The profile is listed and selected, but the image changes with HDR: That may involve how color profiles behave while Advanced Color is active; it does not by itself show that the profile was deleted.
Separating these cases helps avoid deleting or recalibrating a profile when the immediate issue is only its default assignment or the display’s HDR state.
Check the profile for the affected display
- Open Settings > System > Display > Color profile.
- Select the display that is showing the problem. This matters when more than one display is connected.
- Check whether the intended profile appears in the list and whether it is set as the default.
- If it is listed but is not the default, select it and choose Set profile.
- Restart Windows, then return to the same display’s Color profile settings. Check separately whether the profile is still listed and whether it is still the default.
Microsoft documents selecting a display, removing a profile, and setting a profile as the default in its color profile management guidance.
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Use the calibration tool that matches the display
External HDR display: Windows HDR Calibration
For an HDR-capable external display, use the Windows HDR Calibration app. Its documented workflow presents three test patterns and has you adjust sliders to set the display’s HDR behavior.
Microsoft lists these requirements: Windows 11, an HDR-capable display with HDR enabled, use of the app in full-screen mode, a qualifying graphics processor, and a WDDM 2.7-or-later graphics driver. If the app cannot run as expected, check the driver and update it through Windows Update or the graphics processor maker’s supported channel.
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If you have added or replaced a display or otherwise changed the display setup, Microsoft advises rerunning the app: “Run this app whenever you change your display setup (for example, add a new display or replace an existing one).” This guidance covers setup changes; it does not promise to repair a profile that fails to persist after reboot.
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Built-in display: HDR video calibration
Do not confuse the HDR Calibration app with Windows’ built-in Display calibration for HDR video. Microsoft says that built-in calibration applies to built-in displays and streaming HDR video; it does not calibrate an external display. If a built-in screen’s streaming HDR video looks wrong, use the built-in display calibration path described in Microsoft’s HDR video calibration guidance.
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When the profile seems ineffective only in HDR
Windows changes some ICC-profile behavior while Advanced Color is active. Microsoft’s technical documentation describes those changes, so a profile that appears different in HDR may be a mode-related behavior rather than a profile that vanished. Check whether the symptom tracks turning HDR on or off, and whether the profile remains listed and selected in Color profile settings.
Microsoft explains the relevant behavior in its Advanced Color and ICC profiles documentation and Advanced Color overview. These descriptions do not establish that Advanced Color causes a reboot-reset problem on a specific PC.
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Remove a profile only when you have identified it
If a stale or unwanted profile needs to be removed, Microsoft documents removing profiles through Color Management, including profiles created by the HDR Calibration app. Confirm the selected display and the profile name before deleting anything; do not remove a profile merely because the image looks different in HDR. Removing or recreating a profile is a documented management option, not a guaranteed fix for reboot persistence.
If the problem returns, record the conditions
If the profile still disappears or loses its default assignment after the checks above, capture details that can distinguish a machine-specific issue:
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- Windows 11 version and build
- Graphics processor and driver version
- Monitor model, connection, and which display is selected as active
- Whether the profile is absent or only no longer the default
- Whether the same change occurs after sleep or after toggling HDR, as well as after a reboot
- Whether the display setup changed before the problem began
The Microsoft documentation cited here covers profile selection and calibration workflows, but does not confirm registry edits or scheduled-task changes as a fix for this specific symptom. Avoid treating those modifications as an established remedy.
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