diff --git a/start_linux.sh b/start_linux.sh
index 85638a5e..5620c831 100755
--- a/start_linux.sh
+++ b/start_linux.sh
@@ -39,6 +39,9 @@ if [ "$conda_exists" == "F" ]; then
     # test the conda binary
     echo "Miniconda version:"
     "$CONDA_ROOT_PREFIX/bin/conda" --version
+
+    # delete the Miniconda installer
+    rm "$INSTALL_DIR/miniconda_installer.sh"
 fi
 
 # create the installer env
diff --git a/start_macos.sh b/start_macos.sh
index b30bc4c6..6761f531 100755
--- a/start_macos.sh
+++ b/start_macos.sh
@@ -39,6 +39,9 @@ if [ "$conda_exists" == "F" ]; then
     # test the conda binary
     echo "Miniconda version:"
     "$CONDA_ROOT_PREFIX/bin/conda" --version
+
+    # delete the Miniconda installer
+    rm "$INSTALL_DIR/miniconda_installer.sh"
 fi
 
 # create the installer env
diff --git a/start_windows.bat b/start_windows.bat
index 7c437b60..f607e518 100755
--- a/start_windows.bat
+++ b/start_windows.bat
@@ -45,6 +45,9 @@ if "%conda_exists%" == "F" (
 	@rem test the conda binary
 	echo Miniconda version:
 	call "%CONDA_ROOT_PREFIX%\_conda.exe" --version || ( echo. && echo Miniconda not found. && goto end )
+
+    @rem delete the Miniconda installer
+    del "%INSTALL_DIR%\miniconda_installer.exe"
 )
 
 @rem create the installer env
diff --git a/wsl.sh b/wsl.sh
index c94f3e8c..0b744455 100755
--- a/wsl.sh
+++ b/wsl.sh
@@ -66,6 +66,9 @@ if [ "$conda_exists" == "F" ]; then
     # test the conda binary
     echo "Miniconda version:"
     "$CONDA_ROOT_PREFIX/bin/conda" --version
+
+    # delete the Miniconda installer
+    rm "$INSTALL_DIR/miniconda_installer.sh"
 fi
 
 # create the installer env