Cumulative Update 15 for Microsoft Exchange Server 2019 was released on February 10, 2025. It includes fixes for nonsecurity issues and all previously released fixes for security and nonsecurity issues. These fixes will also be included in later cumulative updates for Exchange Server 2019. Also included in this update Extended Protection is enabled by default for Exchange Server 2019. For more ...

If you know the result you want from a formula but aren't sure which input is needed to get that result, use Excel's Goal Seek feature.

Learn how to redeem a gift card, code, or Office product key and spend your balance at Microsoft Store online, on Windows, or Xbox.

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取得有關如何在 Xbox 或電腦上存取 Minecraft Marketplace 並進行購買的解答。

Check boxes are a versatile feature in Excel, useful for making interactive lists and forms. In this article, we'll cover how to add, remove, and toggle them. Insert check boxes Select the range where you want check boxes. Select Insert > Checkbox. Remove check boxes Select the range of cells with the check boxes you want to remove. Select the Delete key. If all of the check boxes were ...

Send S/MIME or Microsoft Purview encrypted emails in Outlook using a work or school account with a qualified Microsoft 365 subscription.

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

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.

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