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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.

For all Surface models Before you start, make sure you don’t have any other USB devices connected to your Surface, including USB mouse devices, keyboards, or other storage drives.

You can open the Copilot pane via the Copilot icon in the ribbon's Home tab. This helpful feature provides answers to questions—broad or specific—about your document. You can even iterate and refine with back-and-forth discussions, get a summary or specific information about the document content, or ask it to generate ideas, tables, or lists that you can copy and insert into your document.

Skype help & learning. Limited emergency calling Skype is not a replacement for your telephone and has limited emergency calling capabilities depending on your country.

Website notifications appear in the lower right corner of your screen and are also displayed in the notification center.When notifications are turned on for a website, they will still appear even if Microsoft Edge is closed.

Note: If you start to play a DVD or VCD in the Player Library, the Player automatically switches to Now Playing mode. The Blu-ray Disc format is not supported in Windows Media Player. To play a Blu-ray Disc, you need to use a non-Microsoft program that supports Blu-ray playback and a device capable of reading Blu-ray Discs.

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Microsoft support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows, Surface, and more.

A factor in authentication is a way of confirming your identity when you try to sign in. For example, a password is one kind of factor, it's a thing you know.