Summary A BitLocker recovery key is needed when BitLocker can’t automatically unlock an encrypted drive in Windows. This is a 48‑digit number that lets you regain access to your drive.

Install Bluetooth drivers using Windows Update Select Start > Settings > Windows Update. Select Check for updates. Install any available updates, and then restart your PC. Reinstall the Bluetooth driver If updating the driver doesn’t help, try uninstalling and reinstalling it. Open Device Manager. Expand Bluetooth. Select and hold (or right‑click) your Bluetooth adapter, then select ...

Learn how to install Office 2021, 2019, or 2016 on your PC or Mac.

Learn how to create installation media for installing or reinstalling Windows.

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

Download drivers and firmware for Surface Keeping your Surface up to date helps it perform at its best. In addition to software updates for Windows, it's also important to install hardware updates—these include drivers and firmware. Each Surface device is eligible to receive new driver and firmware updates until its end-of-servicing date listed in Surface devices driver and firmware ...

Download Microsoft Authenticator Microsoft Authenticator is a mobile app that helps you sign in to all your accounts without using a password.

Learn how to reset or change your Microsoft account password. Get help with a forgotten Microsoft account password.

If your purchase of Office or Microsoft 365 came with a product key, you enter your product key on one of the websites listed below for your product. After you enter your key, you can download and install Office, or you can renew your Microsoft 365 subscription. Having problems with your product key?

If you are using a Windows 11 device, start by running the automated Bluetooth troubleshooter in the Get Help app. It will automatically run diagnostics and attempt to fix this Bluetooth problem.