diff --git a/include/spdlog/details/os.h b/include/spdlog/details/os.h
index 2b8f3e95..26d1fd16 100644
--- a/include/spdlog/details/os.h
+++ b/include/spdlog/details/os.h
@@ -154,10 +154,13 @@ SPDLOG_CONSTEXPR static const char folder_sep = '/';
 
 inline void prevent_child_fd(FILE *f)
 {
+
 #ifdef _WIN32
+#if !defined(__cplusplus_winrt)
     auto file_handle = (HANDLE)_get_osfhandle(_fileno(f));
     if (!::SetHandleInformation(file_handle, HANDLE_FLAG_INHERIT, 0))
         throw spdlog_ex("SetHandleInformation failed", errno);
+#endif
 #else
     auto fd = fileno(f);
     if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
@@ -351,7 +354,7 @@ inline size_t _thread_id()
 //Return current thread id as size_t (from thread local storage)
 inline size_t thread_id()
 {
-#if defined(SPDLOG_DISABLE_TID_CACHING) || (defined(_MSC_VER) && (_MSC_VER < 1900)) || (defined(__clang__) && !__has_feature(cxx_thread_local))
+#if defined(SPDLOG_DISABLE_TID_CACHING) || (defined(_MSC_VER) && (_MSC_VER < 1900)) || defined(__cplusplus_winrt ) || (defined(__clang__) && !__has_feature(cxx_thread_local))
     return _thread_id();
 #else // cache thread id in tls
     static thread_local const size_t tid = _thread_id();
@@ -367,7 +370,7 @@ inline size_t thread_id()
 inline void sleep_for_millis(int milliseconds)
 {
 #if defined(_WIN32)
-    Sleep(milliseconds);
+    ::Sleep(milliseconds);
 #else
     std::this_thread::sleep_for(std::chrono::milliseconds(milliseconds));
 #endif
@@ -436,7 +439,7 @@ inline int pid()
 {
 
 #ifdef _WIN32
-    return ::_getpid();
+	return static_cast<int>(::GetCurrentProcessId());
 #else
     return static_cast<int>(::getpid());
 #endif
diff --git a/include/spdlog/details/spdlog_impl.h b/include/spdlog/details/spdlog_impl.h
index 25c7b7e9..9733a733 100644
--- a/include/spdlog/details/spdlog_impl.h
+++ b/include/spdlog/details/spdlog_impl.h
@@ -16,7 +16,7 @@
 #include "../sinks/syslog_sink.h"
 #endif
 
-#ifdef _WIN32
+#if defined _WIN32 && !defined(__cplusplus_winrt)
 #include "../sinks/wincolor_sink.h"
 #else
 #include "../sinks/ansicolor_sink.h"
@@ -107,7 +107,8 @@ inline std::shared_ptr<spdlog::logger> spdlog::stderr_logger_st(const std::strin
 //
 // stdout/stderr color loggers
 //
-#ifdef _WIN32
+#if defined _WIN32 && !defined(__cplusplus_winrt)
+
 inline std::shared_ptr<spdlog::logger> spdlog::stdout_color_mt(const std::string& logger_name)
 {
     auto sink = std::make_shared<spdlog::sinks::wincolor_stdout_sink_mt>();