Orbmu2k/nvidiaProfileInspector · error · NvapiException

DRS_RestoreProfileDefault

Error message

DRS_RestoreProfileDefault

What it means

NvapiException wrapping a non-NVAPI_OK status from DRS_RestoreProfileDefault. It is raised by ResetProfile while resetting a profile inside a DRS session: GetProfileHandle/GetProfileInfo determined the profile is predefined (isPredefined == 1), so the code calls DRS_RestoreProfileDefault to restore the driver's factory version of that predefined profile; a failure status from the driver is wrapped and thrown, leaving the predefined profile unrestored.

Solutions

1. Verify the NVIDIA driver is installed and the profile name exists before calling ResetProfile.
2. Catch NvapiException around ResetProfile and surface the wrapped status to the caller instead of crashing.
3. Retry the reset in a fresh DRS session, since a stale shared session handle can return errors.
4. For non-predefined profiles, remove the profile rather than calling DRS_RestoreProfileDefault, which only applies to predefined ones.

When it happens

Trigger: Thrown at nvidiaProfileInspector/Common/DrsSettingsService.cs:262 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of Orbmu2k/nvidiaProfileInspector@2f50c388b3 (2026-09-15). Data as JSON: /api/errors/c72337c05ed11221. Report an issue: GitHub.

Appendix: source

Thrown at nvidiaProfileInspector/Common/DrsSettingsService.cs:262

                    throw new NvapiException("DRS_RestoreAllDefaults", nvRes);

                SaveSettings(hSession);
            });
        }

        public void ResetProfile(string profileName, out bool removeFromModified)
        {
            bool tmpRemoveFromModified = false;
            DrsSession((hSession) =>
            {
                var hProfile = GetProfileHandle(hSession, profileName);
                var profile = GetProfileInfo(hSession, hProfile);

                if (profile.isPredefined == 1)
                {
                    var nvRes = nvw.Instance.DRS_RestoreProfileDefault(hSession, hProfile);
                    if (nvRes != NvAPI_Status.NVAPI_OK)
                        throw new NvapiException("DRS_RestoreProfileDefault", nvRes);

                    SaveSettings(hSession);
                    tmpRemoveFromModified = true;
                }
                else if (profile.numOfSettings > 0)
                {
                    int dropCount = 0;
                    var settings = GetProfileSettings(hSession, hProfile);

                    foreach (var setting in settings)
                    {
                        if (setting.settingLocation == NVDRS_SETTING_LOCATION.NVDRS_CURRENT_PROFILE_LOCATION)
                        {
                            if (nvw.Instance.DRS_DeleteProfileSetting(hSession, hProfile, setting.settingId) == NvAPI_Status.NVAPI_OK)
                            {
                                dropCount++;
                            }
                        }

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