diff --git a/src/vs/workbench/contrib/chat/browser/actions/chatActions.ts b/src/vs/workbench/contrib/chat/browser/actions/chatActions.ts
index 2543324..338c0ca 100644
--- a/src/vs/workbench/contrib/chat/browser/actions/chatActions.ts
+++ b/src/vs/workbench/contrib/chat/browser/actions/chatActions.ts
@@ -170,3 +170,4 @@ abstract class OpenChatGlobalAction extends Action2 {
 				ChatContextKeys.Setup.hidden.negate(),
-				ChatContextKeys.Setup.disabled.negate()
+				ChatContextKeys.Setup.disabled.negate(),
+				ContextKeyExpr.has('config.chat.disableAIFeatures').negate()
 			)
@@ -734,3 +735,3 @@ export function registerChatActions() {
 				precondition: ContextKeyExpr.and(
-					ChatContextKeys.Setup.installed,
+					ContextKeyExpr.has('config.chat.disableAIFeatures').negate(),
 					ChatContextKeys.Setup.disabled.negate(),
@@ -947,3 +948,4 @@ MenuRegistry.appendMenuItem(MenuId.CommandCenter, {
 			ChatContextKeys.Setup.hidden.negate(),
-			ChatContextKeys.Setup.disabled.negate()
+			ChatContextKeys.Setup.disabled.negate(),
+			ContextKeyExpr.has('config.chat.disableAIFeatures').negate()
 		),
@@ -964,3 +966,4 @@ MenuRegistry.appendMenuItem(MenuId.TitleBar, {
 			ChatContextKeys.Setup.hidden.negate(),
-			ChatContextKeys.Setup.disabled.negate()
+			ChatContextKeys.Setup.disabled.negate(),
+			ContextKeyExpr.has('config.chat.disableAIFeatures').negate()
 		),
@@ -981,3 +984,4 @@ registerAction2(class ToggleCopilotControl extends ToggleTitleBarConfigAction {
 					ChatContextKeys.Setup.hidden.negate(),
-					ChatContextKeys.Setup.disabled.negate()
+					ChatContextKeys.Setup.disabled.negate(),
+					ContextKeyExpr.has('config.chat.disableAIFeatures').negate()
 				),
@@ -1119,3 +1123,4 @@ MenuRegistry.appendMenuItem(MenuId.EditorContext, {
 		ChatContextKeys.Setup.hidden.negate(),
-		ChatContextKeys.Setup.disabled.negate()
+		ChatContextKeys.Setup.disabled.negate(),
+		ContextKeyExpr.has('config.chat.disableAIFeatures').negate()
 	)
diff --git a/src/vs/workbench/contrib/chat/browser/chat.contribution.ts b/src/vs/workbench/contrib/chat/browser/chat.contribution.ts
index fac472c..107a3b1 100644
--- a/src/vs/workbench/contrib/chat/browser/chat.contribution.ts
+++ b/src/vs/workbench/contrib/chat/browser/chat.contribution.ts
@@ -186,3 +186,3 @@ configurationRegistry.registerConfiguration({
 			markdownDescription: nls.localize('chat.commandCenter.enabled', "Controls whether the command center shows a menu for actions to control chat (requires {0}).", '`#window.commandCenter#`'),
-			default: true
+			default: false
 		},
@@ -802,3 +802,3 @@ configurationRegistry.registerConfiguration({
 			description: nls.localize('chat.disableAIFeatures', "Disable and hide built-in AI features provided by GitHub Copilot, including chat and inline suggestions."),
-			default: false,
+			default: true,
 			scope: ConfigurationScope.WINDOW
diff --git a/src/vs/workbench/contrib/chat/browser/chatParticipant.contribution.ts b/src/vs/workbench/contrib/chat/browser/chatParticipant.contribution.ts
index 8953884..cf0c2d2 100644
--- a/src/vs/workbench/contrib/chat/browser/chatParticipant.contribution.ts
+++ b/src/vs/workbench/contrib/chat/browser/chatParticipant.contribution.ts
@@ -67,10 +67,9 @@ const chatViewDescriptor: IViewDescriptor = {
 	ctorDescriptor: new SyncDescriptor(ChatViewPane),
-	when: ContextKeyExpr.or(
-		ContextKeyExpr.or(
-			ChatContextKeys.Setup.hidden,
-			ChatContextKeys.Setup.disabled
-		)?.negate(),
-		ChatContextKeys.panelParticipantRegistered,
-		ChatContextKeys.extensionInvalid
-	)
+	when: ContextKeyExpr.and(
+		ContextKeyExpr.has('config.chat.disableAIFeatures').negate(),
+		ChatContextKeys.Setup.disabled.negate(),
+		ChatContextKeys.Setup.hidden.negate(),
+ 		ChatContextKeys.panelParticipantRegistered,
+		ChatContextKeys.extensionInvalid.negate()
+ 	)
 };
diff --git a/src/vs/workbench/contrib/chat/common/actions/chatContextKeys.ts b/src/vs/workbench/contrib/chat/common/actions/chatContextKeys.ts
index 62efc91..12e97c6 100644
--- a/src/vs/workbench/contrib/chat/common/actions/chatContextKeys.ts
+++ b/src/vs/workbench/contrib/chat/common/actions/chatContextKeys.ts
@@ -119,3 +119,3 @@ export namespace ChatContextKeyExprs {
 	export const chatSetupTriggerContext = ContextKeyExpr.or(
-		ChatContextKeys.Setup.installed.negate(),
+		ContextKeyExpr.has('config.chat.disableAIFeatures').negate(),
 		ChatContextKeys.Entitlement.canSignUp
diff --git a/src/vs/workbench/contrib/mcp/browser/mcpServersView.ts b/src/vs/workbench/contrib/mcp/browser/mcpServersView.ts
index 7f4dfea..5957267 100644
--- a/src/vs/workbench/contrib/mcp/browser/mcpServersView.ts
+++ b/src/vs/workbench/contrib/mcp/browser/mcpServersView.ts
@@ -540,3 +540,3 @@ export class McpServersViewsContribution extends Disposable implements IWorkbenc
 				ctorDescriptor: new SyncDescriptor(DefaultBrowseMcpServersView, [{}]),
-				when: ContextKeyExpr.and(DefaultViewsContext, HasInstalledMcpServersContext.toNegated(), ChatContextKeys.Setup.hidden.negate(), McpServersGalleryStatusContext.isEqualTo(McpGalleryManifestStatus.Available), ContextKeyExpr.or(ContextKeyDefinedExpr.create(`config.${mcpGalleryServiceUrlConfig}`), ProductQualityContext.notEqualsTo('stable'), ContextKeyDefinedExpr.create(`config.${mcpGalleryServiceEnablementConfig}`))),
+				when: ContextKeyExpr.and(DefaultViewsContext, HasInstalledMcpServersContext.toNegated(), ContextKeyExpr.has('config.chat.disableAIFeatures').negate(), ChatContextKeys.Setup.hidden.negate(), McpServersGalleryStatusContext.isEqualTo(McpGalleryManifestStatus.Available), ContextKeyExpr.or(ContextKeyDefinedExpr.create(`config.${mcpGalleryServiceUrlConfig}`), ProductQualityContext.notEqualsTo('stable'), ContextKeyDefinedExpr.create(`config.${mcpGalleryServiceEnablementConfig}`))),
 				weight: 40,
@@ -555,3 +555,3 @@ export class McpServersViewsContribution extends Disposable implements IWorkbenc
 				ctorDescriptor: new SyncDescriptor(DefaultBrowseMcpServersView, [{ showWelcome: true }]),
-				when: ContextKeyExpr.and(DefaultViewsContext, HasInstalledMcpServersContext.toNegated(), ChatContextKeys.Setup.hidden.negate(), McpServersGalleryStatusContext.isEqualTo(McpGalleryManifestStatus.Available), ContextKeyDefinedExpr.create(`config.${mcpGalleryServiceUrlConfig}`).negate(), ProductQualityContext.isEqualTo('stable'), ContextKeyDefinedExpr.create(`config.${mcpGalleryServiceEnablementConfig}`).negate()),
+				when: ContextKeyExpr.and(DefaultViewsContext, HasInstalledMcpServersContext.toNegated(), ContextKeyExpr.has('config.chat.disableAIFeatures').negate(), ChatContextKeys.Setup.hidden.negate(), McpServersGalleryStatusContext.isEqualTo(McpGalleryManifestStatus.Available), ContextKeyDefinedExpr.create(`config.${mcpGalleryServiceUrlConfig}`).negate(), ProductQualityContext.isEqualTo('stable'), ContextKeyDefinedExpr.create(`config.${mcpGalleryServiceEnablementConfig}`).negate()),
 				weight: 40,
diff --git a/src/vs/workbench/contrib/scm/browser/scm.contribution.ts b/src/vs/workbench/contrib/scm/browser/scm.contribution.ts
index 6f533f1..56c8f9d 100644
--- a/src/vs/workbench/contrib/scm/browser/scm.contribution.ts
+++ b/src/vs/workbench/contrib/scm/browser/scm.contribution.ts
@@ -685,3 +685,3 @@ registerAction2(class extends Action2 {
 					ChatContextKeys.Setup.disabled.negate(),
-					ChatContextKeys.Setup.installed.negate(),
+					ContextKeyExpr.has('config.chat.disableAIFeatures').negate(),
 					ContextKeyExpr.in(ResourceContextKey.Resource.key, 'git.mergeChanges'),
diff --git a/src/vs/workbench/contrib/scm/browser/scmViewPane.ts b/src/vs/workbench/contrib/scm/browser/scmViewPane.ts
index cfea087..5f3efe3 100644
--- a/src/vs/workbench/contrib/scm/browser/scmViewPane.ts
+++ b/src/vs/workbench/contrib/scm/browser/scmViewPane.ts
@@ -1391,3 +1391,3 @@ registerAction2(class extends Action2 {
 					ChatContextKeys.Setup.disabled.negate(),
-					ChatContextKeys.Setup.installed.negate(),
+					ContextKeyExpr.has('config.chat.disableAIFeatures').negate(),
 					ContextKeyExpr.equals('scmProvider', 'git')