diff --git a/lib/clean/user.sh b/lib/clean/user.sh
index 690694d..849a9bd 100644
--- a/lib/clean/user.sh
+++ b/lib/clean/user.sh
@@ -207,6 +207,12 @@ clean_application_support_logs() {
 
         [[ "$is_protected" == "true" ]] && continue
 
+        # Explicit safety check for System Settings / Login Items (Issue #122)
+        if [[ "$app_name" =~ backgroundtaskmanagement || "$app_name" =~ loginitems ]]; then
+             debug_log "Skipping critical system component: $app_name"
+             continue
+        fi
+
         # Clean log directories - simple direct removal without deep scanning
         [[ -d "$app_dir/log" ]] && safe_clean "$app_dir/log"/* "App logs: $app_name"
         [[ -d "$app_dir/logs" ]] && safe_clean "$app_dir/logs"/* "App logs: $app_name"
diff --git a/lib/core/app_protection.sh b/lib/core/app_protection.sh
index 7704435..58570ca 100755
--- a/lib/core/app_protection.sh
+++ b/lib/core/app_protection.sh
@@ -24,6 +24,11 @@ readonly SYSTEM_CRITICAL_BUNDLES=(
     "systempreferences"
     "finder"
     "safari"
+    "com.apple.backgroundtaskmanagement*"
+    "com.apple.loginitems*"
+    "com.apple.sharedfilelist*"
+    "com.apple.sfl*"
+    "backgroundtaskmanagementagent"
     "keychain*"
     "security*"
     "bluetooth*"