diff --git a/.gitignore b/.gitignore
index 3431b2f4..d3fc1b8e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -31,3 +31,7 @@ tools/celtenc
celt.pc
celt.spec
celt/dump_modes/dump_modes
+*.vcxproj.user
+opus.sdf
+opus.suo
+version.h
\ No newline at end of file
diff --git a/celt/celt.vcxproj b/celt/celt.vcxproj
index 3f4508e8..b44abc33 100644
--- a/celt/celt.vcxproj
+++ b/celt/celt.vcxproj
@@ -166,7 +166,6 @@
true
HAVE_CONFIG_H;WIN32;WIN64;NDEBUG;_LIB;%(PreprocessorDefinitions)
../win32;../include;%(AdditionalIncludeDirectories)
- Fast
MultiThreaded
diff --git a/silk/float/silk_float.vcxproj b/silk/float/silk_float.vcxproj
index e25aad5d..51a497e6 100644
--- a/silk/float/silk_float.vcxproj
+++ b/silk/float/silk_float.vcxproj
@@ -173,7 +173,6 @@
HAVE_CONFIG_H;WIN32;WIN64;NDEBUG;_LIB;%(PreprocessorDefinitions)
../;../fixed;../../win32;../../celt;../../include
MultiThreaded
- Fast
Windows
diff --git a/src/opus.vcxproj b/src/opus.vcxproj
index 9aa3dcb3..dad27d4e 100644
--- a/src/opus.vcxproj
+++ b/src/opus.vcxproj
@@ -167,7 +167,6 @@
MultiThreaded
Level3
ProgramDatabase
- Fast
false