diff --git a/modules/backup/acronis-update.sh b/modules/backup/acronis-update.sh
index b899c8b..a82cf2a 100755
--- a/modules/backup/acronis-update.sh
+++ b/modules/backup/acronis-update.sh
@@ -1,7 +1,17 @@
 #!/bin/bash
 
+################################################################################
+# Acronis Agent Update/Upgrade
+################################################################################
+# Purpose: Update Acronis Cyber Protect agent to latest version
+# Methods:
+# - Automatic via cloud (web console)
+# - Manual download and upgrade (preserves config/registration)
+################################################################################
+
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
 source "$SCRIPT_DIR/lib/common-functions.sh"
+source "$SCRIPT_DIR/lib/system-detect.sh"
 
 if [ "$EUID" -ne 0 ]; then
     print_error "This script must be run as root"
@@ -11,7 +21,20 @@ fi
 print_banner "Update Acronis Agent"
 
 echo ""
-echo -e "${BOLD}Acronis Agent Update${NC}"
+
+# Check if Acronis is installed
+if ! systemctl list-unit-files | grep -q "acronis_mms.service"; then
+    print_error "Acronis is not installed"
+    echo ""
+    echo "Install Acronis first:"
+    echo "  1. Return to Acronis menu"
+    echo "  2. Select 'Install Acronis Agent'"
+    echo ""
+    press_enter
+    exit 1
+fi
+
+echo -e "${BOLD}Current Installation${NC}"
 echo ""
 
 # Check current version
@@ -20,59 +43,272 @@ if [ -f "/usr/lib/Acronis/BackupAndRecovery/aakore" ]; then
     current_version=$(/usr/lib/Acronis/BackupAndRecovery/aakore --version 2>/dev/null | head -1 || echo "Unknown")
     echo "  Current version: ${current_version}"
 else
-    print_error "Acronis agent not found"
-    press_enter
-    exit 1
+    echo "  ${YELLOW}Version unknown${NC}"
+fi
+
+# Check service status
+echo ""
+echo "→ Service status:"
+if systemctl is-active --quiet acronis_mms; then
+    echo "  ${GREEN}✓${NC} Services are running"
+else
+    echo "  ${YELLOW}⚠${NC} Some services are stopped"
 fi
 
 echo ""
-echo -e "${BOLD}Update Methods:${NC}"
+echo -e "${CYAN}──────────────────────────────────────────────────────────────${NC}"
+echo ""
+echo -e "${BOLD}Update Methods${NC}"
 echo ""
 echo -e "${CYAN}1. Automatic Update (via Acronis Cloud)${NC}"
 echo "   • Managed from web console"
 echo "   • Navigate to: Settings → Agent updates"
-echo "   • Enable automatic updates or schedule manually"
+echo "   • Can enable automatic updates"
+echo "   • Recommended for production environments"
 echo ""
-echo -e "${CYAN}2. Manual Update (Download + Install)${NC}"
-echo "   • Download latest agent installer"
-echo "   • Install over existing agent"
+echo -e "${CYAN}2. Manual Update (Download + Upgrade)${NC}"
+echo "   • Downloads latest installer"
+echo "   • Runs upgrade automatically"
 echo "   • Preserves configuration and registration"
+echo "   • Agent stays registered to same account"
 echo ""
-echo -n "Select update method (1/2) or 0 to cancel [1]: "
+echo -n "Select update method (1/2) or 0 to cancel [2]: "
 read -r method
-method="${method:-1}"
+method="${method:-2}"
 
 case "$method" in
     1)
+        # Automatic update instructions
+        clear
+        print_banner "Automatic Agent Updates"
         echo ""
-        echo "Automatic updates are managed through Acronis Cloud."
+        echo -e "${BOLD}Configure Automatic Updates via Web Console${NC}"
         echo ""
-        echo "To enable:"
+        echo "Steps:"
         echo "  1. Log in to Acronis web console"
-        echo "  2. Go to: Settings → Agent updates"
-        echo "  3. Configure update policy for this agent"
+
+        # Try to get cloud URL
+        if [ -f "/etc/Acronis/Global.config" ]; then
+            cloud_url=$(grep -oP 'CloudUrl[>="].*?https://[^"<]+' /etc/Acronis/Global.config 2>/dev/null | grep -oP 'https://[^"<]+' | head -1)
+            if [ -n "$cloud_url" ]; then
+                echo "     ${cloud_url}"
+            fi
+        fi
+
         echo ""
+        echo "  2. Navigate to: Settings → Agent updates"
+        echo ""
+        echo "  3. Options available:"
+        echo "     • Enable automatic updates"
+        echo "     • Schedule update time"
+        echo "     • Set update policy per device"
+        echo "     • Configure notification preferences"
+        echo ""
+        echo "  4. Agents will update during maintenance window"
+        echo ""
+        echo -e "${GREEN}Benefits:${NC}"
+        echo "  ✓ Centrally managed"
+        echo "  ✓ Scheduled updates"
+        echo "  ✓ Rollback capability"
+        echo "  ✓ Update verification"
+        echo ""
+        press_enter
         ;;
+
     2)
+        # Manual update/upgrade
+        clear
+        print_banner "Manual Agent Upgrade"
         echo ""
-        echo "Manual update will download and install the latest agent."
+        echo -e "${BOLD}Upgrade Process${NC}"
         echo ""
-        echo -n "Proceed with manual update? (yes/no): "
+        echo "This will:"
+        echo "  1. Download the latest Acronis agent installer"
+        echo "  2. Run installer over existing installation"
+        echo "  3. Automatically upgrade to latest version"
+        echo "  4. Preserve all configuration and registration"
+        echo "  5. Restart services with new version"
+        echo ""
+        echo -e "${YELLOW}Note:${NC} The agent will stay registered to your Acronis account."
+        echo "       No need to re-register after upgrade."
+        echo ""
+        echo -e "${CYAN}──────────────────────────────────────────────────────────────${NC}"
+        echo ""
+
+        # Get cloud URL for download
+        SERVICE_URL="us5-cloud.acronis.com"
+        if [ -f "/etc/Acronis/Global.config" ]; then
+            config_url=$(grep -oP 'CloudUrl[>="].*?https://[^"<]+' /etc/Acronis/Global.config 2>/dev/null | grep -oP 'https://[^"<]+' | head -1)
+            if [ -n "$config_url" ]; then
+                SERVICE_URL=$(echo "$config_url" | sed 's|https://||' | sed 's|/.*||')
+            fi
+        fi
+
+        echo "Download region: ${SERVICE_URL}"
+        echo ""
+        echo -n "Proceed with upgrade? (yes/no): "
         read -r confirm
-        if [ "$confirm" = "yes" ]; then
+
+        if [[ ! "$confirm" =~ ^[Yy]([Ee][Ss])?$ ]]; then
             echo ""
-            echo "→ This will run the installer in upgrade mode..."
+            print_error "Upgrade cancelled"
+            press_enter
+            exit 0
+        fi
+
+        echo ""
+        echo -e "${BOLD}Starting Upgrade...${NC}"
+        echo ""
+
+        # Create download directory
+        DOWNLOAD_DIR="$SCRIPT_DIR/downloads"
+        mkdir -p "$DOWNLOAD_DIR"
+        cd "$DOWNLOAD_DIR" || exit 1
+
+        INSTALL_DIR="$DOWNLOAD_DIR/acronis-upgrade-$(date +%Y%m%d-%H%M%S)"
+        mkdir -p "$INSTALL_DIR"
+        cd "$INSTALL_DIR" || exit 1
+
+        # Download installer
+        echo "→ Downloading latest Acronis agent..."
+        DOWNLOAD_URL="https://${SERVICE_URL}/bc/api/ams/links/agents/redirect?language=multi&system=linux&architecture=64&productType=enterprise"
+
+        if wget -q --show-progress "$DOWNLOAD_URL" -O "Cyber_Protection_Agent_for_Linux_x86_64.bin"; then
+            print_success "Download complete"
+        else
+            print_error "Download failed"
             echo ""
-            echo "Note: You can use the 'Install Acronis Agent' option"
-            echo "which will detect existing installation and offer upgrade."
+            echo "Possible causes:"
+            echo "  • No internet connection"
+            echo "  • Invalid service URL"
+            echo "  • Firewall blocking connection"
+            echo ""
+            cd "$SCRIPT_DIR"
+            rm -rf "$INSTALL_DIR"
+            press_enter
+            exit 1
+        fi
+
+        echo ""
+
+        # Make executable
+        chmod +x "Cyber_Protection_Agent_for_Linux_x86_64.bin" 2>/dev/null
+
+        # Verify file
+        file_size=$(stat -c%s "Cyber_Protection_Agent_for_Linux_x86_64.bin" 2>/dev/null || echo "0")
+        if [ "$file_size" -lt 1000000 ]; then
+            print_error "Downloaded file is too small (possibly corrupted)"
+            cd "$SCRIPT_DIR"
+            rm -rf "$INSTALL_DIR"
+            press_enter
+            exit 1
+        fi
+
+        # Run upgrade (unattended mode)
+        echo "→ Running upgrade..."
+        echo ""
+        echo "The installer will automatically:"
+        echo "  • Detect existing installation"
+        echo "  • Upgrade to latest version"
+        echo "  • Preserve configuration"
+        echo "  • Keep registration"
+        echo ""
+        sleep 2
+
+        echo -e "${DIM}──────────────────────────────────────────────────────────────${NC}"
+
+        # Run installer in unattended mode
+        ./Cyber_Protection_Agent_for_Linux_x86_64.bin -a
+
+        UPGRADE_EXIT_CODE=$?
+
+        echo -e "${DIM}──────────────────────────────────────────────────────────────${NC}"
+        echo ""
+
+        # Check result
+        if [ $UPGRADE_EXIT_CODE -eq 0 ]; then
+            print_success "Upgrade completed successfully!"
+            echo ""
+
+            # Check new version
+            echo "→ Verifying upgrade..."
+            sleep 2
+
+            if [ -f "/usr/lib/Acronis/BackupAndRecovery/aakore" ]; then
+                new_version=$(/usr/lib/Acronis/BackupAndRecovery/aakore --version 2>/dev/null | head -1 || echo "Unknown")
+                echo "  New version: ${new_version}"
+                echo ""
+
+                if [ "$new_version" != "$current_version" ]; then
+                    print_success "Agent upgraded: $current_version → $new_version"
+                else
+                    echo "  ${YELLOW}Version appears unchanged (may already be latest)${NC}"
+                fi
+            fi
+
+            echo ""
+
+            # Check services
+            echo "→ Checking services..."
+            sleep 1
+
+            if systemctl is-active --quiet acronis_mms; then
+                print_success "Services are running"
+            else
+                echo "  ${YELLOW}⚠ Services may need restart${NC}"
+                echo ""
+                echo -n "Restart Acronis services? (yes/no): "
+                read -r restart_confirm
+
+                if [[ "$restart_confirm" =~ ^[Yy]([Ee][Ss])?$ ]]; then
+                    echo ""
+                    echo "→ Restarting services..."
+                    systemctl restart aakore
+                    systemctl restart acronis_mms
+                    systemctl restart acronis_schedule
+                    sleep 2
+
+                    if systemctl is-active --quiet acronis_mms; then
+                        print_success "Services restarted"
+                    else
+                        print_error "Service restart failed"
+                        echo "Check status: systemctl status acronis_mms"
+                    fi
+                fi
+            fi
+
+            echo ""
+            echo -e "${GREEN}${BOLD}✓ Upgrade Complete${NC}"
+            echo ""
+            echo "The agent has been upgraded and remains registered."
+            echo "Backups will continue according to existing schedules."
+            echo ""
+
+        else
+            print_error "Upgrade failed with exit code $UPGRADE_EXIT_CODE"
+            echo ""
+            echo "Common issues:"
+            echo "  • Agent is already latest version"
+            echo "  • Insufficient disk space"
+            echo "  • Services in use"
+            echo ""
+            echo "Check logs for details:"
+            echo "  tail -f /var/lib/Acronis/BackupAndRecovery/MMS/mms.0.log"
             echo ""
         fi
+
+        # Cleanup
+        echo "→ Cleaning up installation files..."
+        cd "$SCRIPT_DIR"
+        rm -rf "$INSTALL_DIR"
+        echo ""
+
+        press_enter
         ;;
+
     *)
         echo ""
         echo "Update cancelled"
+        press_enter
         ;;
 esac
-
-echo ""
-press_enter