获取有关 Windows 安全的帮助; 在 Microsoft Edge 中查看和删除浏览器历史记录; 删除和管理 Cookie; 重新安装 Windows 时安全移除有价值的内容

Summary. This security update makes improvements to Secure Boot DBX for the supported Windows versions listed in the "Applies to" section. Key changes include the following:

To capture someone's attention in an email or meeting invite, type the @ symbol followed by their name within the message or invite. Doing so will highlight their name and prompt Outlook to add them to the To line, ensuring they notice, and add the @ symbol next to their message in the Inbox.

Learn how to use Narrator, a screen-reading app built into Windows, with this complete guide and how-to articles.

Learn how to access and manage your Windows sign in options. Use a password, Windows Hello, or a security key to unlock your device.

Descubre cómo enviar una solicitud para obtener el reembolso de una compra de contenido digital de Xbox.

Learn what to do if you receive a message in Mail or Calendar for Windows 10 that your account settings are out of date.

Learn how to use the PC Health Check app to help you improve your device performance.

Get Microsoft billing support. Find help with Microsoft Store purchases, subscriptions, refunds, payment options, and checking your order history.

Learn how to troubleshoot and fix problems with nearby sharing in Windows.