diff --git a/cmake/configure.cmake b/cmake/configure.cmake
index 1984b16ac..f8ecf1dcc 100644
--- a/cmake/configure.cmake
+++ b/cmake/configure.cmake
@@ -73,7 +73,7 @@ if( MSVC )
         set(CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} ${COMMON_COMPILER_FLAGS}")
     endif()
     set(CMAKE_EXE_LINKER_FLAGS  "${CMAKE_EXE_LINKER_FLAGS}")
-    set(COMMON_FLAGS "/W4 /wd4267 /wd4244 /wd4100")
+    set(COMMON_FLAGS "/W4 /wd4267 /wd4244")
     set(CMAKE_C_FLAGS_RELEASE   "${CMAKE_C_FLAGS_RELEASE} ${COMMON_FLAGS}" )
     set(CMAKE_C_FLAGS_DEBUG     "${CMAKE_C_FLAGS_DEBUG} ${COMMON_FLAGS}")
     set(CMAKE_C_FLAGS           "${CMAKE_C_FLAGS} ${COMMON_FLAGS}" )
diff --git a/tasks/all/runner.cpp b/tasks/all/runner.cpp
index 5a92f5c6c..5ea930ad8 100644
--- a/tasks/all/runner.cpp
+++ b/tasks/all/runner.cpp
@@ -14,7 +14,7 @@ class UnreadMessagesDetector : public ::testing::EmptyTestEventListener {
  public:
   UnreadMessagesDetector() = default;
 
-  void OnTestEnd(const ::testing::TestInfo& test_info) override {
+  void OnTestEnd(const ::testing::TestInfo& /*test_info*/) override {
     int rank = -1;
     MPI_Comm_rank(MPI_COMM_WORLD, &rank);
 
diff --git a/tasks/mpi/runner.cpp b/tasks/mpi/runner.cpp
index ece86e7b8..9de8bed44 100644
--- a/tasks/mpi/runner.cpp
+++ b/tasks/mpi/runner.cpp
@@ -11,7 +11,7 @@ class UnreadMessagesDetector : public ::testing::EmptyTestEventListener {
  public:
   UnreadMessagesDetector() = default;
 
-  void OnTestEnd(const ::testing::TestInfo& test_info) override {
+  void OnTestEnd(const ::testing::TestInfo& /*test_info*/) override {
     int rank = -1;
     MPI_Comm_rank(MPI_COMM_WORLD, &rank);