Find your BitLocker recovery key - Microsoft Support
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.
Manage devices used with your Microsoft account
Learn how to manage your Microsoft devices. Add, remove, register, or rename a device on your Microsoft account.
Applies To:
Microsoft account dashboard
Enable virtualization on Windows - Microsoft Support
Virtualization lets your Windows device emulate a different operating system, like Android or Linux. Enabling virtualization gives you access to a larger library of apps to use and install on your device.
激活 Windows - Microsoft 支持
若要在 Windows 11 中检查激活状态,请选择“开始 ”按钮,然后选择“设置 > 系统 ” ,然后选择“激活 ”。 。 激活状态将在“激活”旁边列出。 在“设置”中检查激活状态. 你将在“激活”页面上看到以下一条激活状态消息:
Check or change language settings - Microsoft Support
Microsoft's products and services work best if you use the same language and region across all your devices, and in all of your app and Store settings.
Applies To:
Outlook.com, Microsoft Edge, OneDrive (home or personal)
Signing in with a passkey - Microsoft Support
What are passkeys? Passkeys are a replacement for your password. With passkeys, you can sign into your Microsoft personal account, or your work/school account using your face, fingerprint, or PIN.
Applies To:
Microsoft account dashboard
Codecs in Media Player - Microsoft Support
Codecs allow you to play different formats of audio and video files. Media Player supports a wide variety of codecs. Most are included out of the box; some additional codecs can be installed from the Microsoft Store.
Sign-in options in Windows - Microsoft Support
The sign-in options in Windows serve various purposes to enhance your user account security and sign in convenience. You can access the sign-in options from the Settings app.
Microsoft account security info & verification codes
Notes: You can add up to 10 different ways to verify sign-in, choosing from: An email address or phone number. It doesn't have to be yours - you just need to be able to access it if you want to use it to verify your account.
Applies To:
Microsoft account dashboard
How to add an account in OneDrive - Microsoft Support
To add a personal or work/school account to OneDrive on your pc. Open OneDrive settings (select the OneDrive cloud icon in your notification area, and then select the OneDrive Help and Settings icon then Settings.)
Applies To:
OneDrive for Business 24, OneDrive for Business, OneDrive (work or school), OneDrive (home or personal), OneDrive (work or school) operated by 21Vianet, OneDrive for Mac, OneDrive for Windows