Resolution. To fix this problem automatically, run the "Fix problems that programs cannot be installed or uninstalled" troubleshooter to repair issues that block program installation or removal because of corrupted registry keys.Important To perform many of the methods and steps in this article, you must be logged on to your computer as an administrator.

There are a few common scenarios in which Windows running on a PC might be discovered to be non-genuine during validation. Repairs. If your PC has been repaired, you might start to see messages on your desktop that Windows isn't genuine.

Select Review activity to check for any unusual sign-in attempts on the Recent activity page.If you see account activity that you're sure wasn't yours, let us know and we can help secure your account—if it's in the Unusual activity section, you can expand the activity and select This wasn't me.If it's in the Recent activity section, you can expand the activity and select Secure your account.

了解如何更新电脑上的 Microsoft Office 以及安装 Office 更新的故障排除提示。

Use Speak to read text aloud. After you have added the Speak command to your Quick Access Toolbar, you can hear single words or blocks of text read aloud by selecting the text you want to hear and then clicking the Speak icon on the Quick Access Toolbar.. Learn more. Listen to your Word documents with Read Aloud. Listen to your Outlook email messages with Read Aloud

On the Home tab, in the Paragraph group, click the arrow next to Bulleted List, and then click Define New Bullet.

Get help with Outlook for Windows, the Outlook app, Outlook.com, and more. Find training videos, how-to articles, and Outlook support content

Change Teams settings. Teams will reflect the same date and time format as your device's language, date, and time settings. For example, if your device's display language is set to English (United States), the date and time in Teams will display the regional format used in the United States.. Change your language settings

In Windows 10, action center is where you'll find your app notifications and quick actions—which give you quick access to commonly used settings and apps.

You can use RTF when you send messages inside an organization that uses Microsoft Exchange, but we recommend that you use the HTML format. In fact, when you send an RTF message to someone outside your organization, Outlook automatically converts it to HTML, so the message keeps its formatting and its attachments.