当在新设备中首次启动 Windows 10 时，设备上已安装的防病毒保护程序即是你的默认安全应用。但是，Windows 安全中心已预安装并可随时使用。 如果你想要使用 Windows 安全中心，可卸载其他所有防病毒程序，Windows 安全中心即自动打开。

Check your poll results. You can see aggregated results in the voting card that is in the body of the email. Click Refresh to see the most updated results or click View in Forms to see detailed responses on forms.office.com.Similarly, you can click on the poll link in the body of the email to track more detailed results on forms.office.com.. Feedback for Microsoft Forms

Microsoft account help and support. Get help with signing in, locked or compromised accounts, linked accounts, closing, reopening, and updating your security info and account profile.

IMAP and POP are two methods to access email. IMAP is the recommended method when you need to check your emails from several different devices, such as a phone, laptop, and tablet.

If you don't have PowerPoint installed on your computer, you can still open and view presentations by using PowerPoint for the web or PowerPoint on your mobile device.

This update is not intended to target Enterprise devices. Specifically, this update targets devices that run Windows 10, version 1803 or later versions that are either Home Edition or Pro Edition.

Free screen recorder with Microsoft 365 work or school account. Record your screen or create a new video in Microsoft Stream (on SharePoint), including webcam, background removal, inking, stickers, music, and text. Instantly share your video for others to view and get analytics.

If you want to play DVDs in Windows 10, go to Microsoft Store to buy Windows DVD Player or another app that plays DVDs. Free DVD player options are also available.

Microsoft support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows, Surface, and more.

Learn more. Fix problems with apps from Microsoft Store. Manage your purchases from the Microsoft Store. Need more help? Contact Support. For technical support, go to Contact Microsoft Support, enter your problem and select Get Help.If you still need help, select Contact Support to be routed to the best support option.