diff --git a/CMakeLists.txt b/CMakeLists.txt
index d08af9382..478bf305d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -474,7 +474,7 @@ elseif(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
 elseif(CMAKE_SYSTEM_NAME STREQUAL "Windows")
 	if (CMAKE_BUILD_TYPE STREQUAL "RelWithDebInfo")
 		if(NOT DEFINED OBJCOPY)
-			set(OBJCOPY i686-w64-mingw32.shared-objcopy)
+			set(OBJCOPY x86_64-w64-mingw32.shared-objcopy)
 		endif()
 		find_program(OBJCOPY_FOUND ${OBJCOPY})
 		if (OBJCOPY_FOUND)
diff --git a/packaging/windows/create-win-installer.sh b/packaging/windows/create-win-installer.sh
index e5e5c946e..f8d95f156 100644
--- a/packaging/windows/create-win-installer.sh
+++ b/packaging/windows/create-win-installer.sh
@@ -9,15 +9,16 @@ cd /__w
 bash subsurface/.github/workflows/scripts/windows-container-prep.sh
 
 # remove artifact from prior builds
-rm mdbtools/include/mdbver.h
+rm -f mdbtools/include/mdbver.h
 
 # build the installer
-rm -rf win32
-mkdir win32
-cd win32
+rm -rf win64
+mkdir win64
+cd win64
 
 # build Subsurface and then smtk2ssrf
-export MXEBUILDTYPE=i686-w64-mingw32.shared
+export MXEBUILDTYPE=x86_64-w64-mingw32.shared
+export PATH=/win/mxe/usr/bin:$PATH
 bash -ex ../subsurface/packaging/windows/mxe-based-build.sh installer
 mv subsurface/subsurface-*.exe /__w
 
diff --git a/packaging/windows/mxe-based-build.sh b/packaging/windows/mxe-based-build.sh
index fc4c73db3..cb2e65beb 100755
--- a/packaging/windows/mxe-based-build.sh
+++ b/packaging/windows/mxe-based-build.sh
@@ -17,7 +17,7 @@
 # JOBS := 1
 #
 # # This variable controls the targets that will build.
-# MXE_TARGETS :=  i686-w64-mingw32.shared.posix.dw2
+# MXE_TARGETS :=  x86_64-w64-mingw32.shared
 #
 # # Uncomment the next line if you want to do debug builds later
 # # qtbase_CONFIGURE_OPTS=-debug-and-release
@@ -101,7 +101,7 @@ EXECDIR=`pwd`
 BASEDIR=$(cd "$EXECDIR/.."; pwd)
 BUILDDIR=$(cd "$EXECDIR"; pwd)
 MXEDIR=${MXEDIR:-mxe}
-MXEBUILDTYPE=${MXEBUILDTYPE:-i686-w64-mingw32.shared.posix.dw2}
+MXEBUILDTYPE=${MXEBUILDTYPE:-x86_64-w64-mingw32.shared}
 
 echo $BUILDDIR
 
diff --git a/packaging/windows/subsurface.nsi.in b/packaging/windows/subsurface.nsi.in
index c13abdae8..bc9f10cc0 100644
--- a/packaging/windows/subsurface.nsi.in
+++ b/packaging/windows/subsurface.nsi.in
@@ -28,7 +28,7 @@
     !define MUI_ICON "subsurface.ico"
 
     # Default installation folder
-    InstallDir "$PROGRAMFILES\Subsurface"
+    InstallDir "$PROGRAMFILES64\Subsurface"
 
     # Get installation folder from registry if available
     InstallDirRegKey HKCU "Software\Subsurface" ""
diff --git a/scripts/windows-container/in-container-build.sh b/scripts/windows-container/in-container-build.sh
index fd38d7ba0..d7a563541 100644
--- a/scripts/windows-container/in-container-build.sh
+++ b/scripts/windows-container/in-container-build.sh
@@ -10,11 +10,11 @@
 set -x
 set -e
 
-mkdir -p win32
-cd win32
+mkdir -p win64
+cd win64
 
 # right now the container still has an older version of MXE installed
-export MXEBUILDTYPE=i686-w64-mingw32.shared
+export MXEBUILDTYPE=x86_64-w64-mingw32.shared
 
 bash -ex ../subsurface/packaging/windows/mxe-based-build.sh installer