diff --git a/.github/actions/start-opensearch-with-one-plugin/action.yml b/.github/actions/start-opensearch-with-one-plugin/action.yml
index 78a4f6dbc5..3218088b77 100644
--- a/.github/actions/start-opensearch-with-one-plugin/action.yml
+++ b/.github/actions/start-opensearch-with-one-plugin/action.yml
@@ -14,6 +14,10 @@ inputs:
     description: 'The name of the setup script you want to run i.e. "setup" (do not include file extension). Leave empty to indicate one should not be run.'
     required: false
 
+  admin-password:
+    description: 'The admin password uses for the cluster'
+    required: true
+
 runs:
   using: "composite"
   steps:
@@ -72,6 +76,11 @@ runs:
         'y' | .\opensearch-${{ inputs.opensearch-version }}-SNAPSHOT\bin\opensearch-plugin.bat install file:$(pwd)\${{ inputs.plugin-name }}.zip
       shell: pwsh
 
+    - name: Write password to initialAdminPassword location
+      run:
+        echo ${{ inputs.admin-password }} >> ./opensearch-${{ env.OPENSEARCH_VERSION }}-SNAPSHOT/config/initialAdminPassword.txt
+      shell: bash
+
     # Run any configuration scripts
     - name: Run Setup Script for Linux
       if: ${{ runner.os == 'Linux' && inputs.setup-script-name != '' }}
@@ -106,13 +115,13 @@ runs:
     # Verify that the server is operational
     - name: Check OpenSearch Running on Linux
       if: ${{ runner.os != 'Windows'}}
-      run: curl https://localhost:9200/_cat/plugins -u 'admin:admin' -k -v
+      run: curl https://localhost:9200/_cat/plugins -u 'admin:${{ inputs.admin-password }}' -k -v --fail-with-body
       shell: bash
 
     - name: Check OpenSearch Running on Windows
       if: ${{ runner.os == 'Windows'}}
       run: |
-        $credentialBytes = [Text.Encoding]::ASCII.GetBytes("admin:admin")
+        $credentialBytes = [Text.Encoding]::ASCII.GetBytes("admin:${{ inputs.admin-password }}")
         $encodedCredentials = [Convert]::ToBase64String($credentialBytes)
         $baseCredentials = "Basic $encodedCredentials"
         $Headers = @{ Authorization = $baseCredentials }
diff --git a/.github/workflows/plugin_install.yml b/.github/workflows/plugin_install.yml
index 934fa4e714..9e4cdfd55d 100644
--- a/.github/workflows/plugin_install.yml
+++ b/.github/workflows/plugin_install.yml
@@ -16,6 +16,9 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
+      - id: random-password
+        uses: peternied/random-name@v1
+
       - name: Set up JDK
         uses: actions/setup-java@v3
         with:
@@ -51,9 +54,10 @@ jobs:
           opensearch-version: ${{ env.OPENSEARCH_VERSION }}
           plugin-name: ${{ env.PLUGIN_NAME }}
           setup-script-name: setup
+          admin-password: ${{ steps.random-password.outputs.generated_name }}
 
       - name: Run sanity tests
         uses: gradle/gradle-build-action@v2
         with:
           cache-disabled: true
-          arguments: integTestRemote -Dtests.rest.cluster=localhost:9200 -Dtests.cluster=localhost:9200 -Dtests.clustername="opensearch" -Dhttps=true -Duser=admin -Dpassword=admin
+          arguments: integTestRemote -Dtests.rest.cluster=localhost:9200 -Dtests.cluster=localhost:9200 -Dtests.clustername="opensearch" -Dhttps=true -Duser=admin -Dpassword=${{ steps.random-password.outputs.generated_name }} -i
diff --git a/tools/install_demo_configuration.bat b/tools/install_demo_configuration.bat
index b08c3bdfae..d9d30fea2b 100755
--- a/tools/install_demo_configuration.bat
+++ b/tools/install_demo_configuration.bat
@@ -75,6 +75,7 @@ cd %CUR%
 echo Basedir: %BASE_DIR%
 
 set "OPENSEARCH_CONF_FILE=%BASE_DIR%config\opensearch.yml"
+set "INTERNAL_USERS_FILE"=%BASE_DIR%config\opensearch-security\internal_users.yml"
 set "OPENSEARCH_CONF_DIR=%BASE_DIR%config\"
 set "OPENSEARCH_BIN_DIR=%BASE_DIR%bin\"
 set "OPENSEARCH_PLUGINS_DIR=%BASE_DIR%plugins\"
@@ -319,6 +320,57 @@ echo plugins.security.restapi.roles_enabled: ["all_access", "security_rest_api_a
 echo plugins.security.system_indices.enabled: true >> "%OPENSEARCH_CONF_FILE%"
 echo plugins.security.system_indices.indices: [".plugins-ml-config", ".plugins-ml-connector", ".plugins-ml-model-group", ".plugins-ml-model", ".plugins-ml-task", ".plugins-ml-conversation-meta", ".plugins-ml-conversation-interactions", ".opendistro-alerting-config", ".opendistro-alerting-alert*", ".opendistro-anomaly-results*", ".opendistro-anomaly-detector*", ".opendistro-anomaly-checkpoints", ".opendistro-anomaly-detection-state", ".opendistro-reports-*", ".opensearch-notifications-*", ".opensearch-notebooks", ".opensearch-observability", ".ql-datasources", ".opendistro-asynchronous-search-response*", ".replication-metadata-store", ".opensearch-knn-models", ".geospatial-ip2geo-data*"] >> "%OPENSEARCH_CONF_FILE%"
 
+setlocal enabledelayedexpansion
+
+set "ADMIN_PASSWORD_FILE=%OPENSEARCH_CONF_DIR%initialAdminPassword.txt"
+set "INTERNAL_USERS_FILE=%OPENSEARCH_CONF_DIR%opensearch-security\internal_users.yml"
+
+echo "what is in the config directory"  
+dir %OPENSEARCH_CONF_DIR%
+
+echo "what is in the password file"
+type "%ADMIN_PASSWORD_FILE%"
+
+
+if "%initialAdminPassword%" NEQ "" (
+  set "ADMIN_PASSWORD=!initialAdminPassword!"
+) else (
+  for /f %%a in ('type "%ADMIN_PASSWORD_FILE%"') do set "ADMIN_PASSWORD=%%a"
+)
+
+if not defined ADMIN_PASSWORD (
+  echo Unable to find the admin password for the cluster. Please set initialAdminPassword or create a file %ADMIN_PASSWORD_FILE% with a single line that contains the password.
+  exit /b 1
+)
+
+echo "   ***************************************************"
+echo "   ***   ADMIN PASSWORD SET TO: %ADMIN_PASSWORD%   ***"
+echo "   ***************************************************"
+
+set "HASH_SCRIPT=%OPENSEARCH_PLUGINS_DIR%\opensearch-security\tools\hash.bat"
+
+REM Run the command and capture its output
+for /f %%a in ('%HASH_SCRIPT% -p !ADMIN_PASSWORD!') do (
+  set "HASHED_ADMIN_PASSWORD=%%a"
+)
+
+if errorlevel 1 (
+  echo Failed to hash the admin password
+  exit /b 1
+)
+
+set "default_line=  hash: "$2a$12$VcCDgh2NDk07JGN0rjGbM.Ad41qVR/YFJcgHp0UGns5JDymv..TOG""
+set "search=%default_line%"
+set "replace=  hash: "%HASHED_ADMIN_PASSWORD%""
+
+setlocal enableextensions
+for /f "delims=" %%i in ('type "%INTERNAL_USERS_FILE%" ^& break ^> "%INTERNAL_USERS_FILE%" ') do (
+    set "line=%%i"
+    setlocal enabledelayedexpansion
+    >>"%INTERNAL_USERS_FILE%" echo(!line:%search%=%replace%!
+    endlocal
+)
+
 :: network.host
 >nul findstr /b /c:"network.host" "%OPENSEARCH_CONF_FILE%" && (
     echo network.host already present
diff --git a/tools/install_demo_configuration.sh b/tools/install_demo_configuration.sh
index 9fce14aee9..01bc1bfed1 100755
--- a/tools/install_demo_configuration.sh
+++ b/tools/install_demo_configuration.sh
@@ -108,6 +108,7 @@ if [ -d "$BASE_DIR" ]; then
 else
     echo "DEBUG: basedir does not exist"
 fi
+
 OPENSEARCH_CONF_FILE="$BASE_DIR/config/opensearch.yml"
 OPENSEARCH_BIN_DIR="$BASE_DIR/bin"
 OPENSEARCH_PLUGINS_DIR="$BASE_DIR/plugins"
@@ -387,6 +388,43 @@ echo 'plugins.security.restapi.roles_enabled: ["all_access", "security_rest_api_
 echo 'plugins.security.system_indices.enabled: true' | $SUDO_CMD tee -a "$OPENSEARCH_CONF_FILE" > /dev/null
 echo 'plugins.security.system_indices.indices: [".plugins-ml-config", ".plugins-ml-connector", ".plugins-ml-model-group", ".plugins-ml-model", ".plugins-ml-task", ".plugins-ml-conversation-meta", ".plugins-ml-conversation-interactions", ".opendistro-alerting-config", ".opendistro-alerting-alert*", ".opendistro-anomaly-results*", ".opendistro-anomaly-detector*", ".opendistro-anomaly-checkpoints", ".opendistro-anomaly-detection-state", ".opendistro-reports-*", ".opensearch-notifications-*", ".opensearch-notebooks", ".opensearch-observability", ".ql-datasources", ".opendistro-asynchronous-search-response*", ".replication-metadata-store", ".opensearch-knn-models", ".geospatial-ip2geo-data*"]' | $SUDO_CMD tee -a "$OPENSEARCH_CONF_FILE" > /dev/null
 
+## Read the admin password from the file or use the initialAdminPassword if set
+ADMIN_PASSWORD_FILE="$OPENSEARCH_CONF_DIR/initialAdminPassword.txt"
+INTERNAL_USERS_FILE="$OPENSEARCH_CONF_DIR/opensearch-security/internal_users.yml"
+
+if [[ -n "$initialAdminPassword" ]]; then
+  ADMIN_PASSWORD="$initialAdminPassword"
+elif [[ -f "$ADMIN_PASSWORD_FILE" && -s "$ADMIN_PASSWORD_FILE" ]]; then
+  ADMIN_PASSWORD=$(head -n 1 "$ADMIN_PASSWORD_FILE")
+else
+  echo "Unable to find the admin password for the cluster. Please run 'export initialAdminPassword=<your_password>' or create a file $ADMIN_PASSWORD_FILE with a single line that contains the password."
+  exit 1
+fi
+
+echo "   ***************************************************"
+echo "   ***   ADMIN PASSWORD SET TO: $ADMIN_PASSWORD    ***"
+echo "   ***************************************************"
+
+$SUDO_CMD chmod +x "$OPENSEARCH_PLUGINS_DIR/opensearch-security/tools/hash.sh"
+
+# Use the Hasher script to hash the admin password
+HASHED_ADMIN_PASSWORD=$($OPENSEARCH_PLUGINS_DIR/opensearch-security/tools/hash.sh -p "$ADMIN_PASSWORD" | tail -n 1)
+
+if [ $? -ne 0 ]; then
+  echo "Hash the admin password failure, see console for details"
+  exit 1
+fi
+
+# Find the line number containing 'admin:' in the internal_users.yml file
+ADMIN_HASH_LINE=$(grep -n 'admin:' "$INTERNAL_USERS_FILE" | cut -f1 -d:)
+
+awk -v hashed_admin_password="$HASHED_ADMIN_PASSWORD" '
+  /^ *hash: *"\$2a\$12\$VcCDgh2NDk07JGN0rjGbM.Ad41qVR\/YFJcgHp0UGns5JDymv..TOG"/ {
+    sub(/"\$2a\$12\$VcCDgh2NDk07JGN0rjGbM.Ad41qVR\/YFJcgHp0UGns5JDymv..TOG"/, "\"" hashed_admin_password "\"");
+  }
+  { print }
+' "$INTERNAL_USERS_FILE" > temp_file && mv temp_file "$INTERNAL_USERS_FILE"
+
 #network.host
 if $SUDO_CMD grep --quiet -i "^network.host" "$OPENSEARCH_CONF_FILE"; then
 	: #already present