To check the end-of-support dates for your version of Windows, see the product lifecycle information for Windows.. If your version of Windows is still supported, you should always install the latest updates for Windows.To download and install these updates, use Windows Update in the Settings app.

A BitLocker recovery key is needed when BitLocker can’t automatically unlock an encrypted drive in Windows. This key, which is a 48-digit number, is used to regain access to the drive.

Tip: If you encounter a problem on your Windows device, pressing the Windows logo key + F takes a screenshot, then opens the Feedback Hub app and automatically uploads the screenshot to the Feedback tab. Follow the on-screen instructions to detail the problem you've encountered.

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