Learn how to optimize system performance by managing startup applications in Windows., This page provides support links for home users and support phone numbers for business users., Learn how to give your Windows device permission to access your microphone., If you are using a Windows 10 device, start by running the automated Bluetooth troubleshooter in the Get Help app. It will automatically run diagnostics and attempt to fix most Bluetooth problems. If you are using an older version of Windows or a mobile device, please skip to Most Common Bluetooth Problems section., Some apps let you manage background activity, which determines what they can do when they’re in the background and not actively in use. Apps that can run in the background can send and receive notifications, sync information, and stay up to date. If you find that an app is using a lot of battery when running in the background, you can change the setting for apps that allow it. Select the , Get the steps for how to transfer photos and videos from your phone to your PC..