If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track.

Change from a 32-bit version to a 64-bit version or vice versa. Activate Windows. Fix Bluetooth problems in Windows. Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.

Avoid and report Microsoft technical support scams. Learn how to unlock your Microsoft account and resolve 'account has been locked' error message.

For help from an agent, follow the Get help link below to chat or request a call—we’ll call you so you don’t have to wait. For even faster help, search for your topic on our site. Get help.

Choose the power mode that works for you and what you want to do on your Windows 11 PC. This lets you determine what’s important to you—getting the best battery life, best performance, or a balance between the two. To change the power mode, select Start > Settings > System > Power & battery.

Contact Microsoft Support. What's new. Surface Pro. Surface Laptop. Surface Laptop Studio 2. Surface Laptop Go 3. Microsoft Copilot. AI in Windows. Explore Microsoft products.

You can link your social media account in one of two ways: Use the Xbox mobile app to scan the QR code. Select the Link option which will launch the Microsoft Edge app on Xbox. You can choose to link your Discord, Reddit, Steam, Twitch, or other social media account.

If your account has been hacked, use our sign-in helper tool below to help guide you to the right solutions. The tool will ask for your email address or phone number, and either show appropriate self-help, or offer the chance to talk to an agent.

How to open Microsoft Store on Windows. Select Start then enter Microsoft Store. Select it to open the app. If Microsoft Store won't launch, get more info at Microsoft Store does not launch.

Protect your Android, iPhone, Mac, and Windows devices from threats by installing Microsoft Defender. Download Microsoft Defender on your devices either by: Scanning the following QR code. Searching for Microsoft Defender in your app store. Sharing with your devices, the following link: Copy link.