Method UnpatchSteamToolsExe

ui/Services/Patching/Patcher.cs:734–772

()

        }

        public bool UnpatchSteamToolsExe()
        {
            _verbose = true;
            var exe = FindSteamToolsExe();
            if (exe == null) return false;

            try
            {
                KillSteamTools();

                var data = ReadFileShared(exe);
                if (data.Length < StExePatchOffset + 2) return false;

                if (data[StExePatchOffset] == StExeOriginal[0]
                    && data[StExePatchOffset + 1] == StExeOriginal[1])
                    return true; // already original

                if (data[StExePatchOffset] != StExePatched[0]
                    || data[StExePatchOffset + 1] != StExePatched[1])
                    return false; // unknown bytes

                data[StExePatchOffset] = StExeOriginal[0];
                data[StExePatchOffset + 1] = StExeOriginal[1];
                FileUtils.AtomicWriteAllBytes(exe, data);

                Log("  SteamTools.exe: restored to original");
                return true;
            }
            catch (UnauthorizedAccessException)
            {
                Log("  SteamTools.exe: access denied - run as administrator");
                return false;
            }
            catch (IOException ex)
            {
                Log($"  SteamTools.exe: {ex.Message}");
                return false;
            }
        }

        void Log(string msg)
        {