Tip: If you're a Microsoft 365 Family or Personal subscriber you get Microsoft Defender, our advanced security software for Windows, Mac, iOS, and Android, as part of your subscription.Learn more at Getting started with Microsoft Defender.

Note Depending on your region or provider, you may see an option to add mobile billing or PayPal to your account. Make sure that all your info is correct before saving. Incorrect or out-of-date info may cause issues when making purchases in the Store.

To learn about digital signatures (also known as digital ID), what they can be used for, and how to them in Word, Excel, and PowerPoint, see All about digital signatures.. Create a signature line in Word or Excel

Word marks spelling, grammar, and stylistic issues with an underline. Control-click the word or phrase and choose one of the options. If Word incorrectly underlined a word as misspelled and you want to add that word to your dictionary so that Word will properly recognize it in the future, see Add or edit words in a spell check dictionary. If spelling or grammatical errors aren't underlined ...

Learn how to recover your password for Microsoft accounts such as Outlook.com, Hotmail, Live, MSN, and OneNote.

If you want to create a graphical representation of a sequence of events, such as the milestones in a project or the main events of a person's life, you can use a SmartArt graphic timeline.

有关如何更改 Microsoft 帐户上的名称的说明。

Whether it’s a new job title (congratulations!) or a phone number change, make sure you keep your email message signature up-to-date. If you're using new Outlook, for more information about email signatures, or if you haven’t created one yet, see Add a signature to messages.. Select File > Options > Mail > Signatures.

若要将其关闭，请将设置切换为“关闭”。 关闭 Microsoft Defender 防火墙可能会使设备（以及网络，如果有）更容易受到未经授权的访问。

My Account portal for work or school accounts; Change your work or school account password; Find the administrator for your work or school account