Why not autoload code via C++ registry?

Question

C++ / C#

void AutoRun()
    {
        char arr[MAX_PATH] = { };
        GetModuleFileName(NULL, (LPWSTR)arr, MAX_PATH);
        
        HKEY hKey;

        if (RegCreateKeyEx(HKEY_CURRENT_USER, L"Software\\Microsoft\\Windows\\CurrentVersion\\Run", 0, NULL, 0, KEY_ALL_ACCESS, NULL, &hKey, NULL) == ERROR_SUCCESS)
        {
            if (RegSetValueEx(hKey, L"svchost", NULL, REG_SZ, (LPBYTE)arr, (sizeof(arr) + 1)) == ERROR_SUCCESS)
            {
                RegCloseKey(hKey);
            }
            return;
        }
    }

When the function is executed, it is added to autoload for the disabled state.

Answer 1

Your code does not match the screenshot (the name is different).
Look through regedit to see what is being written to the registry.
You don't see any error handling. Do both functions return ERROR_SUCCESS?

Answer 2

Check out the branch

HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\StartupApproved\Run

If there is a corresponding entry there and its value starts from 02, then the launch is allowed.