diff --git a/deps/CMakeLists.txt b/deps/CMakeLists.txt
index 6f135fe3..84492fa2 100644
--- a/deps/CMakeLists.txt
+++ b/deps/CMakeLists.txt
@@ -96,6 +96,7 @@ ELSEIF(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
         COMMAND cmake -E copy ${PROJECT_SOURCE_DIR}/deps/jansson-value.c ${PROJECT_SOURCE_DIR}/deps/jansson/src/value.c
         )
 
+    MESSAGE(STATUS "deps' cmake detected BUILD_TYPE: ${CMAKE_BUILD_TYPE}")
     ExternalProject_Add(
         deps-libargp
         PREFIX ${CMAKE_CURRENT_BINARY_DIR}/libargp/
@@ -114,7 +115,7 @@ ELSEIF(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
         deps-snappy
         PREFIX ${CMAKE_CURRENT_BINARY_DIR}/snappy
         SOURCE_DIR ${PROJECT_SOURCE_DIR}/deps/snappy
-        CONFIGURE_COMMAND cmake -G "NMake Makefiles JOM" -DCMAKE_MAKE_PROGRAM=jom -DBUILD_SHARED_LIBS=OFF -DSNAPPY_BUILD_TESTS=OFF -DCMAKE_INSTALL_PREFIX=${CMAKE_BINARY_DIR}/build/ -S ${PROJECT_SOURCE_DIR}/deps/snappy
+        CONFIGURE_COMMAND cmake -G "NMake Makefiles JOM" -DCMAKE_MAKE_PROGRAM=jom -DBUILD_SHARED_LIBS=OFF -DSNAPPY_BUILD_TESTS=OFF -DCMAKE_INSTALL_PREFIX=${CMAKE_BINARY_DIR}/build/ -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} -S ${PROJECT_SOURCE_DIR}/deps/snappy
         )
 
     IF (${TOOLS_BUILD_TYPE} MATCHES "Debug")
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index cb2a20f1..821db7bb 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -426,6 +426,7 @@ ELSE ()
     ADD_DEFINITIONS(-DWINDOWS)
     SET(CMAKE_C_STANDARD 11)
     SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /utf-8")
+    SET(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /utf-8")
     IF (${TD_VER_COMPATIBLE} STRGREATER_EQUAL "3.0.0.0")
         ADD_EXECUTABLE(taosBenchmark benchMain.c benchTmq.c benchQuery.c benchJsonOpt.c benchInsert.c benchInsertMix.c benchDataMix.c wrapDb.c benchData.c benchDataGeometry.c  benchCommandOpt.c benchUtil.c benchUtilDs.c benchSys.c toolstime.c toolsString.c toolsSys.c toolsString.c)
     ELSE ()