diff --git a/.github/workflows/cmake-multi-platform.yml b/.github/workflows/cmake-multi-platform.yml
index 13c995c..5a33a0b 100644
--- a/.github/workflows/cmake-multi-platform.yml
+++ b/.github/workflows/cmake-multi-platform.yml
@@ -25,13 +25,10 @@ jobs:
       #
       # To add more build types (Release, Debug, RelWithDebInfo, etc.) customize the build_type list.
       matrix:
-        os: [ubuntu-latest, windows-latest]
+        os: [ubuntu-latest]
         build_type: [Release]
-        c_compiler: [gcc, clang, cl]
+        c_compiler: [gcc, clang]
         include:
-          - os: windows-latest
-            c_compiler: cl
-            cpp_compiler: cl
           - os: ubuntu-latest
             c_compiler: gcc
             cpp_compiler: g++
diff --git a/preinstall b/preinstall
index cbf5c87..59d081f 100755
--- a/preinstall
+++ b/preinstall
@@ -7,8 +7,7 @@ fi
 
 SRC="$PWD"
 DST=/usr/include/Compound
-PROJ=("Array" "Paper" "Pen" "Render" "Status" "Var" "MemMan" "Stack" "Utils"\
-      "String" "Object")
+set -- Array Paper Pen Render Status Var MemMan Stack Utils String Object
 
 # Create directory.
 if [ ! -d "$DST" ]; then
@@ -16,22 +15,15 @@ if [ ! -d "$DST" ]; then
 fi
 
 # Install project-like headers.
-PROJLEN=${#PROJ[*]}
-echo "======== $PROJLEN projects in total ========"
-
-idx=0
-while :; do
-  if [[ $idx -eq $PROJLEN || $idx -gt $PROJLEN ]]; then
-    break;
-  fi
+while :; do  
+  p="$1"
+  if [ -z "$1" ]; then break; fi
   
-  p="${PROJ[$idx]}"
-  
-  cd "$p"
-  echo "`date` >>> Installing $p"
+  cd "$p" || exit 1
+  echo "$(date) >>> Installing $p"
   cp -v include/*.h "$DST"
-  cd "$SRC"
-  ((idx++))
+  cd "$SRC" || exit 1
+  shift 1
   echo
 done