A popular tactic of criminals is the "fake order" scam. The way it works is that you get a message, usually in email or text, that appears to be a routine confirmation for an order. Of course, you never ordered whatever product or service it's confirming. The message looks common enough, and it says that money will be charged to your credit card or withdrawn from your bank account for the ...

Learn how to request refunds for games, apps, or subscriptions purchased through Xbox and get assistance with your orders.

The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs.

What if I can't find the recovery key? If your device is managed by an organization, check with your IT department to retrieve the recovery key. If you can’t find the BitLocker recovery key and are unable to undo any changes that caused it to be needed, you’ll have to reset your device using one of the Windows recovery options. Resetting your device will remove all of your files.

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.

Discover the benefits to co-authoring documents in your organization and learn about versioning, checkin/checkout, and mixed Office environments.

If you get an email from Microsoft account team and the email address domain is @accountprotection.microsoft.com, it is safe to trust the message and open it. Microsoft uses this domain to send email notifications about your Microsoft account. These notifications can include security codes for two-step verification and account update information, such as password changes. You can check the ...

Use Power Query in Excel to import data into Excel from a wide variety of popular data sources, including CSV, XML, JSON, PDF, SharePoint, SQL, and more.

Discover the step-by-step process to change or reset your Windows password if you've lost or forgotten it. This guide will help you regain access to your Windows account quickly and securely.

重要: 对 Office 2016 和 Office 2019 的支持将于 2025 年 10 月 14 日结束，并且没有扩展安全更新。 所有 Office 2016 和 Office 2019 应用将继续正常运行。 但是，你可能将自己暴露在严重并且可能有害的安全风险之下。