Find out how to get a DVD player app, add-on, or plug-in, or whether you can upgrade your edition of Windows to add DVD playback.

In the File Download dialog box, click Run or Open, and then follow the steps in the Windows Firewall Troubleshooter.

Info for Windows Insiders. If you’re an Insider and the current preview build isn’t working for you, select Start > Settings > System > Recovery .Next to Go back , select Go back.This won’t remove your personal files, but it’ll remove recently installed apps and drivers, and change settings back to their defaults.

The Windows 10 free upgrade offer ended on July 29, 2016. To upgrade to Windows 10, you will need to have a compatible PC and purchase a full version of the software.We recommend that you don’t install Windows 10 on an older device, as some Windows 7 devices are not compatible with Windows 10 or could experience reduced feature availability.

This article explains how to renew your Microsoft 365 subscription for personal or family use and what you can do after you renew.It also provides detailed troubleshooting help.. If you need help managing your payment, see Add, update, or remove credit cards and other ways to pay.. If you want to check prices before you renew, see Choose the right Microsoft 365 for you.

Notes: If your Android device is running Android 11.0 or higher, you may be eligible for the multiple apps experience. Compatible devices are marked with an asterisk (*).

本文的大部分内容与默认的动态连接线形状相关，该形状可以自动围绕其他形状对其自身进行重新排列。一些类型的连接线不会自动重新排列，例如“更多形状”\“其他 Visio 方案”\“连接线”模具中提供的大多数连接线。

Get help and support for Microsoft Edge. Find Microsoft Edge support content, how-to articles, tutorials, and more.

需要有关 Xbox 主机、Xbox 游戏或 Xbox 网络的帮助?了解如何与我们联系。

When you make your computer a trusted device, you won't need to enter a security code each time you try to access sensitive info, like credit card information associated with your Microsoft account.