Applies to: Windows Server 2019 This security update includes fixes and quality improvements that are part of the following update: March 10, 2026—KB5078752 (OS Build 17763.8511) The following is a summary of the issues that this update addresses when you install this update. The bold text within the brackets indicates the item or area of the change we are documenting. [PowerShell (known ...

Hotmail is now Outlook.com To sign in to Hotmail, you'll need your Microsoft account username and password. Sign in at outlook.live.com

In this article: Adjust display brightness Night light Color profile management Use HDR Adjust display brightness Managing your display brightness can significantly enhance your viewing experience and help conserve battery life. You can adjust the brightness manually or let your PC handle it automatically based on lighting conditions or content.

摘要 Email 簽名能在你的商業溝通中建立專業一致性，並確保收件人在每則訊息中都擁有你的聯絡資訊。 在Outlook中，你可以為不同用途設定多個簽名 (內部與外部、個人與商務) ，並選擇是否自動包含在新郵件、回覆或轉寄中。 你的簽名可以包含文字、連結、圖片和圖片 (，例如你的手寫簽名或標誌 ...

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

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If you are having trouble with your microphone features, the following information can help you troubleshoot and resolve issues.

Find solutions for Xbox account and profile issues, manage settings, and get support for your Xbox experience.