Privileges.cs

using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Security.Principal;
using static RegSave.Interop;

namespace RegSave
{
    public class Privileges
    {
        //From https://raw.githubusercontent.com/GhostPack/SharpDump/master/SharpDump/Program.cs
        public static bool IsHighIntegrity()
        {
            // returns true if the current process is running with adminstrative privs in a high integrity context
            var identity = WindowsIdentity.GetCurrent();
            var principal = new WindowsPrincipal(identity);
            return principal.IsInRole(WindowsBuiltInRole.Administrator);
        }

        //From https://github.com/Dijji/RepairTasks/blob/97acc1f1806f64f23c978253924836fa7018b5fc/RegKey.cs
        public static void EnableDisablePrivilege(string PrivilegeName, bool EnableDisable)
        {
            var htok = IntPtr.Zero;

            if (!OpenProcessToken(Process.GetCurrentProcess().Handle, TokenAccessLevels.AdjustPrivileges | TokenAccessLevels.Query, out htok))
            {
                Marshal.ThrowExceptionForHR(Marshal.GetHRForLastWin32Error());
                return;
            }

            var tkp = new TOKEN_PRIVILEGES { PrivilegeCount = 1 };
            LUID luid;

            if (!LookupPrivilegeValue(null, PrivilegeName, out luid))
            {
                Marshal.ThrowExceptionForHR(Marshal.GetHRForLastWin32Error());
                return;
            }

            tkp.Luid = luid;
            tkp.Attributes = (uint)(EnableDisable ? 2 : 0);
            TOKEN_PRIVILEGES prv;
            uint rb;

            if (!AdjustTokenPrivileges(htok, false, ref tkp, 256, out prv, out rb))
            {
                Marshal.ThrowExceptionForHR(Marshal.GetHRForLastWin32Error());
            }
        }
    }
}