diff --git a/example/ck_tile/01_fmha/rotary.hpp b/example/ck_tile/01_fmha/rotary.hpp
index d4fa3451df..a6458c2173 100644
--- a/example/ck_tile/01_fmha/rotary.hpp
+++ b/example/ck_tile/01_fmha/rotary.hpp
@@ -8,6 +8,11 @@
 
 #include <cassert>
 #include <cmath>
+
+#ifndef M_PI // Not there on windows...
+#define M_PI 3.141592653589793238462643383279502884
+#endif
+
 #include <functional>
 #include <iterator>
 #include <optional>
diff --git a/example/ck_tile/41_batched_contraction/run_batched_contraction_example.inc b/example/ck_tile/41_batched_contraction/run_batched_contraction_example.inc
index 214b14633d..e9e9832002 100644
--- a/example/ck_tile/41_batched_contraction/run_batched_contraction_example.inc
+++ b/example/ck_tile/41_batched_contraction/run_batched_contraction_example.inc
@@ -6,6 +6,7 @@
 #include <iostream>
 #include <algorithm>
 #include <cmath>
+#include <chrono>
 #include "contraction_utils.hpp"
 #include "ck_tile/host/reference/reference_batched_contraction.hpp"
 
diff --git a/include/ck_tile/host/high_res_cpu_clock.hpp b/include/ck_tile/host/high_res_cpu_clock.hpp
index c86f7368d4..4a9eb7e0ae 100644
--- a/include/ck_tile/host/high_res_cpu_clock.hpp
+++ b/include/ck_tile/host/high_res_cpu_clock.hpp
@@ -4,6 +4,16 @@
 #pragma once
 
 #include <stdint.h>
+#if defined(_WIN32) || defined(_WIN64)
+// Windows
+#if !defined(WIN32_LEAN_AND_MEAN)
+#define WIN32_LEAN_AND_MEAN
+#endif
+#if !defined(NOMINMAX)
+#define NOMINMAX
+#endif
+#include <Windows.h>
+#endif
 
 namespace ck_tile {
 
@@ -15,8 +25,6 @@ struct timepoint_t
 
 // Platform-specific includes and implementation
 #if defined(_WIN32) || defined(_WIN64)
-// Windows
-#include <windows.h>
 
 static inline timepoint_t high_res_now()
 {
diff --git a/include/ck_tile/ops/fused_moe/pipeline/fused_moegemm_pipeline_flatmm_ex.hpp b/include/ck_tile/ops/fused_moe/pipeline/fused_moegemm_pipeline_flatmm_ex.hpp
index 46a7acbb12..60245438fe 100644
--- a/include/ck_tile/ops/fused_moe/pipeline/fused_moegemm_pipeline_flatmm_ex.hpp
+++ b/include/ck_tile/ops/fused_moe/pipeline/fused_moegemm_pipeline_flatmm_ex.hpp
@@ -109,8 +109,8 @@ struct FusedMoeGemmPipeline_FlatmmEx
         constexpr auto NEG1  = number<-1>{};
         constexpr auto I0    = number<0>{};
         constexpr auto I1    = number<1>{};
-        constexpr auto TRUE  = bool_constant<true>{};
-        constexpr auto FALSE = bool_constant<false>{};
+        constexpr auto True  = bool_constant<true>{};
+        constexpr auto False = bool_constant<false>{};
 
         CK_TILE_LDS_ADDR ADataType* smem_0 = reinterpret_cast<CK_TILE_LDS_ADDR ADataType*>(smem);
         CK_TILE_LDS_ADDR ADataType* smem_1 = reinterpret_cast<CK_TILE_LDS_ADDR ADataType*>(
@@ -291,7 +291,7 @@ struct FusedMoeGemmPipeline_FlatmmEx
                         g_win.bottom_tensor_view_ = u_view;
                     }
                 }
-                load_tile_raw(g_, g_win, i_access, FALSE, PreNop{});
+                load_tile_raw(g_, g_win, i_access, False, PreNop{});
             };
         auto move_g = [&]() {
             move_tile_window(g_win, {number<0>{}, number<BlockShape::Block_Kr0>{}, number<0>{}});
@@ -300,7 +300,7 @@ struct FusedMoeGemmPipeline_FlatmmEx
 
         auto gld_d =
             [&]<typename PreNop = bool_constant<false>>(auto& d_, auto i_access, PreNop = {}) {
-                load_tile_raw(d_, d_win, i_access, FALSE, PreNop{});
+                load_tile_raw(d_, d_win, i_access, False, PreNop{});
             };
         auto move_d = [&]() {
             // d move along gemm-n
@@ -309,7 +309,7 @@ struct FusedMoeGemmPipeline_FlatmmEx
 
         auto atomic_add_o =
             [&]<typename PreNop = bool_constant<false>>(auto& o_, auto i_access, PreNop = {}) {
-                update_tile_raw(o_win, o_, i_access, TRUE, PreNop{});
+                update_tile_raw(o_win, o_, i_access, True, PreNop{});
             };
 
         auto acc_0  = Policy::template MakeCBlockTile_Gemm0<Problem>();
@@ -502,9 +502,9 @@ struct FusedMoeGemmPipeline_FlatmmEx
             static_for<0, total_loops, 1>{}([&](auto i_issue) {
                 constexpr auto last_nop = [&]() {
                     if constexpr(i_issue == (total_loops - 1))
-                        return TRUE;
+                        return True;
                     else
-                        return FALSE;
+                        return False;
                 }();
                 gemm_0(acc_0, as[I1], gs[I1], i_issue, last_nop); // last gemm has nop
             });
@@ -607,8 +607,8 @@ struct FusedMoeGemmPipeline_FlatmmEx
 
         // start of pipeline
         // clang-format off
-        gld_a(a_sst_win0, NEG1, TRUE);
-        gld_g(gs[I0], NEG1, TRUE);
+        gld_a(a_sst_win0, NEG1, True);
+        gld_g(gs[I0], NEG1, True);
         move_a();
         move_g();
         clear_tile(acc_0);