Remotely/Shared/Services/ElevationDetectorWin.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Security.Principal;
using System.Text;
using System.Threading.Tasks;

namespace Remotely.Shared.Services
{
    public class ElevationDetectorWin : IElevationDetector
    {
        public bool IsElevated()
        {
           return new WindowsPrincipal(WindowsIdentity.GetCurrent()).IsInRole(WindowsBuiltInRole.Administrator);
        }
    }
}