diff --git a/src/vs/workbench/contrib/preferences/browser/preferences.contribution.ts b/src/vs/workbench/contrib/preferences/browser/preferences.contribution.ts
index ae421026..e4792735 100644
--- a/src/vs/workbench/contrib/preferences/browser/preferences.contribution.ts
+++ b/src/vs/workbench/contrib/preferences/browser/preferences.contribution.ts
@@ -14,7 +14,7 @@ import { Context as SuggestContext } from 'vs/editor/contrib/suggest/browser/sug
 import * as nls from 'vs/nls';
 import { Action2, MenuId, MenuRegistry, registerAction2 } from 'vs/platform/actions/common/actions';
 import { CommandsRegistry, ICommandService } from 'vs/platform/commands/common/commands';
-import { ContextKeyExpr, IContextKey, IContextKeyService, RawContextKey } from 'vs/platform/contextkey/common/contextkey';
+import { ContextKeyExpr } from 'vs/platform/contextkey/common/contextkey';
 import { InputFocusedContext, IsMacNativeContext } from 'vs/platform/contextkey/common/contextkeys';
 import { SyncDescriptor } from 'vs/platform/instantiation/common/descriptors';
 import { IInstantiationService, ServicesAccessor } from 'vs/platform/instantiation/common/instantiation';
@@ -60,9 +60,6 @@ const SETTINGS_EDITOR_COMMAND_FILTER_UNTRUSTED = 'settings.filterUntrusted';
 
 const SETTINGS_COMMAND_OPEN_SETTINGS = 'workbench.action.openSettings';
 
-const HasInstalledExtDependencyExtensionContext = new RawContextKey<boolean>('hasExtDependency', false); //by wpl
-const HasInstalledOfflineExtManagerExtensionContext = new RawContextKey<boolean>('hasOfflineExtManager', false); //by wpl
-
 
 Registry.as<IEditorPaneRegistry>(EditorExtensions.EditorPane).registerEditorPane(
 	EditorPaneDescriptor.create(
@@ -141,16 +138,12 @@ function sanitizeOpenSettingsArgs(args: any): IOpenSettingsActionOptions {
 
 class PreferencesActionsContribution extends Disposable implements IWorkbenchContribution {
 
-	private HasInstalledExtDependencyExtensionContextKey: IContextKey<boolean>;
-	private HasInstalledOfflineExtManagerExtensionContextKey: IContextKey<boolean>;
-
 	constructor(
 		@IWorkbenchEnvironmentService private readonly environmentService: IWorkbenchEnvironmentService,
 		@IPreferencesService private readonly preferencesService: IPreferencesService,
 		@IWorkspaceContextService private readonly workspaceContextService: IWorkspaceContextService,
 		@ILabelService private readonly labelService: ILabelService,
 		@IExtensionService private readonly extensionService: IExtensionService,
-		@IContextKeyService contextKeyService: IContextKeyService,
 	) {
 		super();
 
@@ -161,21 +154,6 @@ class PreferencesActionsContribution extends Disposable implements IWorkbenchCon
 		this._register(workspaceContextService.onDidChangeWorkbenchState(() => this.updatePreferencesEditorMenuItem()));
 		this._register(workspaceContextService.onDidChangeWorkspaceFolders(() => this.updatePreferencesEditorMenuItemForWorkspaceFolders()));
 
-		this.HasInstalledExtDependencyExtensionContextKey = HasInstalledExtDependencyExtensionContext.bindTo(contextKeyService);
-		this.HasInstalledOfflineExtManagerExtensionContextKey = HasInstalledOfflineExtManagerExtensionContext.bindTo(contextKeyService);
-		this.checkallextension();
-	}
-
-	//check extension
-	private async checkallextension() {
-		const runningExtensions = await this.extensionService.getExtensions();
-		for (let extension of runningExtensions) {
-			if (extension.identifier.value === 'KylinIDETeam.extension-dependency') {
-				this.HasInstalledExtDependencyExtensionContextKey.set(true);
-			} else if (extension.identifier.value === 'KylinIDETeam.offline-extensions-manager') {
-				this.HasInstalledOfflineExtManagerExtensionContextKey.set(true);
-			}
-		}
 	}
 
 	private registerSettingsActions() {
diff --git a/src/vs/workbench/services/extensions/electron-sandbox/cachedExtensionScanner.ts b/src/vs/workbench/services/extensions/electron-sandbox/cachedExtensionScanner.ts
index 852ea770..37e5ae23 100644
--- a/src/vs/workbench/services/extensions/electron-sandbox/cachedExtensionScanner.ts
+++ b/src/vs/workbench/services/extensions/electron-sandbox/cachedExtensionScanner.ts
@@ -15,23 +15,34 @@ import { localize } from 'vs/nls';
 import { INotificationService } from 'vs/platform/notification/common/notification';
 import { IHostService } from 'vs/workbench/services/host/browser/host';
 import { timeout } from 'vs/base/common/async';
+import { IContextKey, IContextKeyService, RawContextKey } from 'vs/platform/contextkey/common/contextkey';
 
+const HasInstalledExtDependencyExtensionContext = new RawContextKey<boolean>('hasExtDependency', false);
+const HasInstalledOfflineExtManagerExtensionContext = new RawContextKey<boolean>('hasOfflineExtManager', false);
 export class CachedExtensionScanner {
 
 	public readonly scannedExtensions: Promise<IExtensionDescription[]>;
 	private _scannedExtensionsResolve!: (result: IExtensionDescription[]) => void;
 	private _scannedExtensionsReject!: (err: any) => void;
 
+	private HasInstalledExtDependencyExtensionContextKey: IContextKey<boolean>;
+	private HasInstalledOfflineExtManagerExtensionContextKey: IContextKey<boolean>;
+
 	constructor(
 		@INotificationService private readonly _notificationService: INotificationService,
 		@IHostService private readonly _hostService: IHostService,
 		@IExtensionsScannerService private readonly _extensionsScannerService: IExtensionsScannerService,
 		@ILogService private readonly _logService: ILogService,
+		@IContextKeyService contextKeyService: IContextKeyService,
 	) {
 		this.scannedExtensions = new Promise<IExtensionDescription[]>((resolve, reject) => {
 			this._scannedExtensionsResolve = resolve;
 			this._scannedExtensionsReject = reject;
 		});
+
+		this.HasInstalledExtDependencyExtensionContextKey = HasInstalledExtDependencyExtensionContext.bindTo(contextKeyService);
+		this.HasInstalledOfflineExtManagerExtensionContextKey = HasInstalledOfflineExtManagerExtensionContext.bindTo(contextKeyService);
+
 	}
 
 	public async scanSingleExtension(extensionPath: string, isBuiltin: boolean): Promise<IExtensionDescription | null> {
@@ -43,6 +54,13 @@ export class CachedExtensionScanner {
 		try {
 			const { system, user, development } = await this._scanInstalledExtensions();
 			const r = dedupExtensions(system, user, development, this._logService);
+			for (let extension of r) {
+				if (extension.identifier.value === 'KylinIDETeam.extension-dependency') {
+					this.HasInstalledExtDependencyExtensionContextKey.set(true);
+				} else if (extension.identifier.value === 'KylinIDETeam.offline-extensions-manager') {
+					this.HasInstalledOfflineExtManagerExtensionContextKey.set(true);
+				}
+			}
 			this._scannedExtensionsResolve(r);
 		} catch (err) {
 			this._scannedExtensionsReject(err);