diff --git a/src/vs/workbench/contrib/welcome/gettingStarted/browser/gettingStarted.ts b/src/vs/workbench/contrib/welcome/gettingStarted/browser/gettingStarted.ts
index e6c421fe14d..1213c5c3e0a 100644
--- a/src/vs/workbench/contrib/welcome/gettingStarted/browser/gettingStarted.ts
+++ b/src/vs/workbench/contrib/welcome/gettingStarted/browser/gettingStarted.ts
@@ -1247,6 +1247,11 @@ export class GettingStartedPage extends EditorPane {
 	private buildCategorySlide(categoryID: string, selectedStep?: string) {
 		if (this.detailsScrollbar) { this.detailsScrollbar.dispose(); }
 
+		this.extensionService.whenInstalledExtensionsRegistered().then(() => {
+			// Remove internal extension id specifier from exposed id's
+			this.extensionService.activateByEvent(`onWalkthrough:${categoryID.replace(/[^#]+#/, '')}`);
+		});
+
 		this.detailsPageDisposables.clear();
 
 		const category = this.gettingStartedCategories.find(category => category.id === categoryID);
diff --git a/src/vs/workbench/services/extensions/common/extensionsRegistry.ts b/src/vs/workbench/services/extensions/common/extensionsRegistry.ts
index 736853d6857..7d9d3445bdd 100644
--- a/src/vs/workbench/services/extensions/common/extensionsRegistry.ts
+++ b/src/vs/workbench/services/extensions/common/extensionsRegistry.ts
@@ -329,6 +329,11 @@ export const schema: IJSONSchema = {
 						body: 'onTerminalProfile:${1:terminalId}',
 						description: nls.localize('vscode.extension.activationEvents.onTerminalProfile', 'An activation event emitted when a specific terminal profile is launched.'),
 					},
+					{
+						label: 'onWalkthrough',
+						body: 'onWalkthrough:${1:walkthroughID}',
+						description: nls.localize('vscode.extension.activationEvents.onWalkthrough', 'An activation event emitted when a specified walkthrough is opened.'),
+					},
 					{
 						label: '*',
 						description: nls.localize('vscode.extension.activationEvents.star', 'An activation event emitted on VS Code startup. To ensure a great end user experience, please use this activation event in your extension only when no other activation events combination works in your use-case.'),