This article applies to Office Home & Business, Office Professional, and individually purchased Office apps. To switch an Office install to or from Microsoft 365, see Switch your Office license.. Change the product key for your version

In the Save As dialog box, in the Save as type list, select Outlook Template.

In Windows Server 2012, Update for Microsoft Windows (KB4486081) is displayed under Installed Updates in Control Panel. In Windows RT 8.1, Windows 8.1 or Windows Server 2012 R2, Update for Microsoft Windows (KB4486105) is displayed under Installed Updates in Control Panel.

Dictation lets you use speech-to-text to author content in Microsoft 365 with a microphone and reliable internet connection. It's a quick and easy way to get your thoughts out, create drafts or outlines, and capture notes.

Resolve Windows blue screen errors with tips and resources to do your own troubleshooting, or contact the Microsoft support if you need more help.

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

If you get an email about unusual activity on your Microsoft account, or if you’re worried that someone else might have used your account, go to the Recent activity page.You’ll see when your Microsoft account was signed in during the last 30 days, along with any device or app-specific info.

Important: You won't lose files or data by resetting OneDrive on your computer.Resetting OneDrive only disconnects all your sync connections (including personal and work or school).

When you install Office 2010, you'll be prompted to enter a 25-character product key that looks something like this: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX

注意: 如果使用 Microsoft 帐户 （例如 Outlook.com 、Hotmail、Live 或 MSN 电子邮件帐户）而不是工作或学校帐户登录，请注销，然后使用正确的帐户重新登录。 不确定使用哪个帐户登录？ 在 Outlook 导航标头中选择 “帐户管理员 ”。 如果未使用所需帐户登录，请选择“ 注销 ”并重新开始该过程，或选择 ...