Microsoft will never proactively reach out to you to provide unsolicited PC or technical support. If you receive a phone call claiming to be from Microsoft, or see a pop-up window on your PC with a fake warning message and a phone number to call and get your "issue" fixed, it's better to be safe and not click any links or provide any personal information.

Want to add a padlock to your email messages? You can use encryption and digital signatures in new Outlook, classic Outlook, and Outlook on the web for work or school accounts to increase the security of messages. Encrypting an email message in Outlook means it's converted from readable plain text into scrambled cipher text. Only the recipient who has the private key that matches the public ...

Learn how to use mobile operator billing as a payment option to buy XBOX subscriptions, games, and other content.

你已达到可发送的数字礼品数量限制。 此策略旨在保护我们的游戏社区。 可能需要等待 30 天才能再次尝试。 游戏或订阅可能无法以数字形式赠送。 请查看产品页面。 可作为礼品发送的数字产品包括选择“作为礼品购买”。 它并不是可下载的产品。 某些游戏仍作为包装商品出售，由我们线下为您 ...

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

Learn how to sign into your PC with Windows Hello using a PIN, facial recognition, or fingerprint.

Learn how to sign in and create app passwords for Microsoft apps and devices that don't support two-step verification.

2-Step Authentication Guide me in setting up turn on 2-step authenticati What is Does my app support 2-step authentication /? Give me 2-Step Authentication.

Learn how to manage your Microsoft account security info and troubleshoot verification code issues.

Learn how to add user accounts in Windows 10 and Windows 11. With an account, each person has separate files, browser favorites, and a private desktop.