Orbmu2k/nvidiaProfileInspector · error · NvapiException

DRS_RestoreAllDefaults

Error message

DRS_RestoreAllDefaults

What it means

NvapiException("DRS_RestoreAllDefaults", status) is thrown when the driver-wide DRS_RestoreAllDefaults call fails, aborting a reset of ALL driver profiles to factory defaults. Because this operation is destructive and non-granular, a partial failure can leave the settings store in an intermediate state.

Solutions

  1. Close NVIDIA Control Panel and other DRS clients, then retry the reset
  2. Run the application as administrator
  3. Update/reinstall the NVIDIA driver if the settings database is corrupted (nvdisps corruption)
  4. As a granular fallback, reset individual profiles via ResetProfile instead of all at once
  5. Catch NvapiException and warn the user which phase failed; check whether settings were partially reset

Example fix

// before
settingsService.ResetAllProfiles();
// after
try { settingsService.ResetAllProfiles(); }
catch (NvapiException ex)
{
    Log.Error($"RestoreAllDefaults failed: {ex.Status}");
    MessageBox.Show("Reset failed. Your settings may be partially restored.");
}
Defensive patterns

Strategy: try-catch

Try / catch

try
{
    settingsService.ResetAllProfiles();
}
catch (NvapiException ex)
{
    Log.Error($"RestoreAllDefaults failed: {ex.Status}");
    WarnUserOfPartialReset();
}

Prevention

When it happens

Trigger: ResetAllProfilesInternal runs RunDrsInitProcess, opens a global DrsSession, and calls nvw.Instance.DRS_RestoreAllDefaults(hSession); any non-NVAPI_OK result throws at DrsSettingsService.cs:244 before SaveSettings is reached.

Common situations: Driver settings store corrupted, so the driver cannot enumerate and reset all profiles; another application (NVIDIA Control Panel) holds the store concurrently; insufficient permissions for the destructive reset; driver update in progress.

Related errors

AI-assisted analysis of Orbmu2k/nvidiaProfileInspector@2f50c388b3 (2026-09-15). Data as JSON: /api/errors/ebdfb7148f376a32. Report an issue: GitHub.

Appendix: source

Thrown at nvidiaProfileInspector/Common/DrsSettingsService.cs:244

            {
                var hProfile = CreateProfile(hSession, profileName);

                if (applicationName != null)
                    AddApplication(hSession, hProfile, applicationName);

                SaveSettings(hSession);
            });
        }

        public void ResetAllProfilesInternal()
        {
            RunDrsInitProcess();

            DrsSession((hSession) =>
            {
                var nvRes = nvw.Instance.DRS_RestoreAllDefaults(hSession);
                if (nvRes != NvAPI_Status.NVAPI_OK)
                    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);

View on GitHub (pinned to 2f50c388b3)