disable fast updates by default

src/vs/workbench/parts/update/electron-browser/update.contribution.ts

@@ -7,7 +7,6 @@
 
 import * as nls from 'vs/nls';
 import 'vs/css!./media/update.contribution';
-import product from 'vs/platform/node/product';
 import { Registry } from 'vs/platform/registry/common/platform';
 import { IWorkbenchContributionsRegistry, Extensions as WorkbenchExtensions } from 'vs/workbench/common/contributions';
 import { ReleaseNotesEditor } from 'vs/workbench/parts/update/electron-browser/releaseNotesEditor';
@@ -61,7 +60,7 @@ configurationRegistry.registerConfiguration({
 		},
 		'update.enableWindowsBackgroundUpdates': {
 			'type': 'boolean',
-			'default': product.quality === 'insider',
+			'default': false,
 			'description': nls.localize('enableWindowsBackgroundUpdates', "Enables Windows background updates.")
 		}
 	}