diff --git a/src/portal/src/lib/components/config/vulnerability/vulnerability-config.component.html b/src/portal/src/lib/components/config/vulnerability/vulnerability-config.component.html
index a58021c69..1b0d3b20d 100644
--- a/src/portal/src/lib/components/config/vulnerability/vulnerability-config.component.html
+++ b/src/portal/src/lib/components/config/vulnerability/vulnerability-config.component.html
@@ -6,7 +6,7 @@
          <span>{{ updatedTimeStr }} </span>
      </div>
     <div class="button-group">
-        <cron-selection [labelCurrent]="getLabelCurrent" [labelEdit]='getLabelCurrent'
+        <cron-selection [disabled]="!hasDefaultScanner" [labelCurrent]="getLabelCurrent" [labelEdit]='getLabelCurrent'
                         [originCron]='originCron' (inputvalue)="saveSchedule($event)"></cron-selection>
     </div>
 </section>
diff --git a/src/portal/src/lib/components/config/vulnerability/vulnerability-config.component.spec.ts b/src/portal/src/lib/components/config/vulnerability/vulnerability-config.component.spec.ts
index 61823ba99..e89ba6c19 100644
--- a/src/portal/src/lib/components/config/vulnerability/vulnerability-config.component.spec.ts
+++ b/src/portal/src/lib/components/config/vulnerability/vulnerability-config.component.spec.ts
@@ -103,6 +103,7 @@ describe('VulnerabilityConfigComponent', () => {
    it('should stop looping  manual metrics if manual scanning is finished', () => {
      component.scanningMetrics.isScheduled = false;
      component.scanningMetrics.ongoing = false;
+     component.hasDefaultScanner = true;
      expect(component.scanAvailable).toBeTruthy();
   });
 });
diff --git a/src/portal/src/lib/components/config/vulnerability/vulnerability-config.component.ts b/src/portal/src/lib/components/config/vulnerability/vulnerability-config.component.ts
index 99f5a1153..462887857 100644
--- a/src/portal/src/lib/components/config/vulnerability/vulnerability-config.component.ts
+++ b/src/portal/src/lib/components/config/vulnerability/vulnerability-config.component.ts
@@ -41,6 +41,7 @@ export class VulnerabilityConfigComponent implements OnInit, OnDestroy {
     private _loopManualInterval;
     updatedTimeStr: string;
     onGettingUpdatedTimeStr: boolean;
+    hasDefaultScanner: boolean = false;
     constructor(
         private scanningService: ScanAllRepoService,
         private errorHandler: ErrorHandler,
@@ -86,7 +87,8 @@ export class VulnerabilityConfigComponent implements OnInit, OnDestroy {
     get scanAvailable(): boolean {
         return !this.onSubmitting
             && !this.gettingMetrics
-            && !this.isOnScanning();
+            && !this.isOnScanning()
+            && this.hasDefaultScanner;
     }
 
     getScanText() {
@@ -119,6 +121,9 @@ export class VulnerabilityConfigComponent implements OnInit, OnDestroy {
                         }
                     });
                 }
+                if (flag) {
+                    this.hasDefaultScanner = true;
+                }
                 if (!flag) {
                     this.onGettingUpdatedTimeStr = false;
                 }