This page provides support links for home users and support phone numbers for business users.

Known issues in this update For the most up-to-date information about known issues for Windows 11, version 25H2, go to the Windows release health dashboard.

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

Learn how to install, reinstall, or activate Microsoft 365 or Office 2024 on a PC or Mac.

Find out how to manage your Xbox subscriptions to request a refund or cancel a recurring payment.

Find out how to submit a request for a refund for a purchase of digital Xbox content.

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

Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows.

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 ...

Windows Update is the recommend method to download, install, and update printer drivers. For information on how to update printer drivers using Windows Update, see the following article: