diff --git a/VisualC-GDK/SDL/SDL.vcxproj b/VisualC-GDK/SDL/SDL.vcxproj
index d69ca4346..7bba0226d 100644
--- a/VisualC-GDK/SDL/SDL.vcxproj
+++ b/VisualC-GDK/SDL/SDL.vcxproj
@@ -326,7 +326,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC-GDK/SDL_test/SDL_test.vcxproj b/VisualC-GDK/SDL_test/SDL_test.vcxproj
index 8d5106cbd..802910de3 100644
--- a/VisualC-GDK/SDL_test/SDL_test.vcxproj
+++ b/VisualC-GDK/SDL_test/SDL_test.vcxproj
@@ -192,7 +192,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC-GDK/tests/testcontroller/testcontroller.vcxproj b/VisualC-GDK/tests/testcontroller/testcontroller.vcxproj
index f600ce203..5f89c2424 100644
--- a/VisualC-GDK/tests/testcontroller/testcontroller.vcxproj
+++ b/VisualC-GDK/tests/testcontroller/testcontroller.vcxproj
@@ -268,7 +268,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC-GDK/tests/testgdk/testgdk.vcxproj b/VisualC-GDK/tests/testgdk/testgdk.vcxproj
index c16fadefe..2e3ecf872 100644
--- a/VisualC-GDK/tests/testgdk/testgdk.vcxproj
+++ b/VisualC-GDK/tests/testgdk/testgdk.vcxproj
@@ -292,7 +292,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC-GDK/tests/testsprite/testsprite.vcxproj b/VisualC-GDK/tests/testsprite/testsprite.vcxproj
index 15ea690af..0c1ac0622 100644
--- a/VisualC-GDK/tests/testsprite/testsprite.vcxproj
+++ b/VisualC-GDK/tests/testsprite/testsprite.vcxproj
@@ -292,7 +292,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/SDL/SDL.vcxproj b/VisualC/SDL/SDL.vcxproj
index c79a99116..9514dd5a8 100644
--- a/VisualC/SDL/SDL.vcxproj
+++ b/VisualC/SDL/SDL.vcxproj
@@ -239,7 +239,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/SDL_test/SDL_test.vcxproj b/VisualC/SDL_test/SDL_test.vcxproj
index 4313bbe1f..1347150c1 100644
--- a/VisualC/SDL_test/SDL_test.vcxproj
+++ b/VisualC/SDL_test/SDL_test.vcxproj
@@ -158,7 +158,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/checkkeys/checkkeys.vcxproj b/VisualC/tests/checkkeys/checkkeys.vcxproj
index 901cdbbd1..b73120e72 100644
--- a/VisualC/tests/checkkeys/checkkeys.vcxproj
+++ b/VisualC/tests/checkkeys/checkkeys.vcxproj
@@ -189,7 +189,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/loopwave/loopwave.vcxproj b/VisualC/tests/loopwave/loopwave.vcxproj
index 6ab91a822..271ac351c 100644
--- a/VisualC/tests/loopwave/loopwave.vcxproj
+++ b/VisualC/tests/loopwave/loopwave.vcxproj
@@ -189,7 +189,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testatomic/testatomic.vcxproj b/VisualC/tests/testatomic/testatomic.vcxproj
index abe71ff91..7123ec282 100644
--- a/VisualC/tests/testatomic/testatomic.vcxproj
+++ b/VisualC/tests/testatomic/testatomic.vcxproj
@@ -183,7 +183,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testautomation/testautomation.vcxproj b/VisualC/tests/testautomation/testautomation.vcxproj
index d973c8dc9..dbefb3697 100644
--- a/VisualC/tests/testautomation/testautomation.vcxproj
+++ b/VisualC/tests/testautomation/testautomation.vcxproj
@@ -183,7 +183,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testcontroller/testcontroller.vcxproj b/VisualC/tests/testcontroller/testcontroller.vcxproj
index fbcadfcb8..9efbb6dca 100644
--- a/VisualC/tests/testcontroller/testcontroller.vcxproj
+++ b/VisualC/tests/testcontroller/testcontroller.vcxproj
@@ -183,7 +183,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testdialog/testdialog.vcxproj b/VisualC/tests/testdialog/testdialog.vcxproj
index 88e570f77..a74d0f1ee 100644
--- a/VisualC/tests/testdialog/testdialog.vcxproj
+++ b/VisualC/tests/testdialog/testdialog.vcxproj
@@ -183,7 +183,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testdraw/testdraw.vcxproj b/VisualC/tests/testdraw/testdraw.vcxproj
index de8a31e22..ba9574585 100644
--- a/VisualC/tests/testdraw/testdraw.vcxproj
+++ b/VisualC/tests/testdraw/testdraw.vcxproj
@@ -183,7 +183,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testfile/testfile.vcxproj b/VisualC/tests/testfile/testfile.vcxproj
index dfcd43122..3fc59b0d3 100644
--- a/VisualC/tests/testfile/testfile.vcxproj
+++ b/VisualC/tests/testfile/testfile.vcxproj
@@ -183,7 +183,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testgl/testgl.vcxproj b/VisualC/tests/testgl/testgl.vcxproj
index 6c5212520..088ce931a 100644
--- a/VisualC/tests/testgl/testgl.vcxproj
+++ b/VisualC/tests/testgl/testgl.vcxproj
@@ -187,7 +187,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testgles2/testgles2.vcxproj b/VisualC/tests/testgles2/testgles2.vcxproj
index 728bb2cc7..194042f53 100644
--- a/VisualC/tests/testgles2/testgles2.vcxproj
+++ b/VisualC/tests/testgles2/testgles2.vcxproj
@@ -183,7 +183,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testoverlay/testoverlay.vcxproj b/VisualC/tests/testoverlay/testoverlay.vcxproj
index 6d7e2ccb0..112bf3143 100644
--- a/VisualC/tests/testoverlay/testoverlay.vcxproj
+++ b/VisualC/tests/testoverlay/testoverlay.vcxproj
@@ -183,7 +183,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testpen/testpen.vcxproj b/VisualC/tests/testpen/testpen.vcxproj
index 65888443c..589e605bc 100644
--- a/VisualC/tests/testpen/testpen.vcxproj
+++ b/VisualC/tests/testpen/testpen.vcxproj
@@ -183,7 +183,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testplatform/testplatform.vcxproj b/VisualC/tests/testplatform/testplatform.vcxproj
index af8ae0cdb..c0aba9f00 100644
--- a/VisualC/tests/testplatform/testplatform.vcxproj
+++ b/VisualC/tests/testplatform/testplatform.vcxproj
@@ -195,7 +195,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testpower/testpower.vcxproj b/VisualC/tests/testpower/testpower.vcxproj
index cacf3621d..89fc2ea9b 100644
--- a/VisualC/tests/testpower/testpower.vcxproj
+++ b/VisualC/tests/testpower/testpower.vcxproj
@@ -183,7 +183,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testrendertarget/testrendertarget.vcxproj b/VisualC/tests/testrendertarget/testrendertarget.vcxproj
index e59bb6ba8..b487b7e4f 100644
--- a/VisualC/tests/testrendertarget/testrendertarget.vcxproj
+++ b/VisualC/tests/testrendertarget/testrendertarget.vcxproj
@@ -183,7 +183,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testrumble/testrumble.vcxproj b/VisualC/tests/testrumble/testrumble.vcxproj
index 0ae100dc3..78a666f55 100644
--- a/VisualC/tests/testrumble/testrumble.vcxproj
+++ b/VisualC/tests/testrumble/testrumble.vcxproj
@@ -183,7 +183,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testscale/testscale.vcxproj b/VisualC/tests/testscale/testscale.vcxproj
index c8900f361..dbb0e4cd4 100644
--- a/VisualC/tests/testscale/testscale.vcxproj
+++ b/VisualC/tests/testscale/testscale.vcxproj
@@ -183,7 +183,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testsensor/testsensor.vcxproj b/VisualC/tests/testsensor/testsensor.vcxproj
index f0a9af8ac..d74963844 100644
--- a/VisualC/tests/testsensor/testsensor.vcxproj
+++ b/VisualC/tests/testsensor/testsensor.vcxproj
@@ -183,7 +183,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testshape/testshape.vcxproj b/VisualC/tests/testshape/testshape.vcxproj
index 149048373..97cb7bbbc 100644
--- a/VisualC/tests/testshape/testshape.vcxproj
+++ b/VisualC/tests/testshape/testshape.vcxproj
@@ -183,7 +183,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testsprite/testsprite.vcxproj b/VisualC/tests/testsprite/testsprite.vcxproj
index 46473ccc9..5baba6e47 100644
--- a/VisualC/tests/testsprite/testsprite.vcxproj
+++ b/VisualC/tests/testsprite/testsprite.vcxproj
@@ -183,7 +183,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testsurround/testsurround.vcxproj b/VisualC/tests/testsurround/testsurround.vcxproj
index 13ded82fa..9e1b9c4d9 100644
--- a/VisualC/tests/testsurround/testsurround.vcxproj
+++ b/VisualC/tests/testsurround/testsurround.vcxproj
@@ -189,7 +189,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testvulkan/testvulkan.vcxproj b/VisualC/tests/testvulkan/testvulkan.vcxproj
index 0e6645b4d..f906fd0f4 100644
--- a/VisualC/tests/testvulkan/testvulkan.vcxproj
+++ b/VisualC/tests/testvulkan/testvulkan.vcxproj
@@ -183,7 +183,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testwm/testwm.vcxproj b/VisualC/tests/testwm/testwm.vcxproj
index 48786d340..9b74b039e 100644
--- a/VisualC/tests/testwm/testwm.vcxproj
+++ b/VisualC/tests/testwm/testwm.vcxproj
@@ -183,7 +183,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)
diff --git a/VisualC/tests/testyuv/testyuv.vcxproj b/VisualC/tests/testyuv/testyuv.vcxproj
index 5adf0eee3..5b7b9b429 100644
--- a/VisualC/tests/testyuv/testyuv.vcxproj
+++ b/VisualC/tests/testyuv/testyuv.vcxproj
@@ -183,7 +183,6 @@
- %(AdditionalOptions) /utf-8
$(TreatWarningsAsError)