Download and install or reinstall Microsoft 365 or Office 2021 on a PC ...
Select Install (or depending on your version, Install apps>). From the home page select Install apps (If you set a different start page, go to aka.ms/office-install.) For Microsoft 365 operated by 21 Vianet go to login.partner.microsoftonline.cn/account. For Microsoft 365 Germany go to portal.office.de/account.
Applies To: Office 2024, Office 2024 for Mac, Office 2021, Office 2021 for Mac, Office 2019, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Admin, Microsoft 365 for Mac, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin
Enable virtualization on Windows - Microsoft Support
Learn how to enable virtualization through the UEFI (or BIOS) of your PC to run the Windows Subsystem for Android or Windows Subsystem for Linux.
Windows help and learning
Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.
How to use the PC Health Check app - Microsoft Support
Here's some of the things you can do in the PC Health Check app in Windows: If you’re currently running Windows 10, PC Health Check provides a comprehensive eligibility check for your device to ensure it meets the Windows 11 minimum system requirements.
How to redeem gift cards and codes | Xbox Support
If you're having trouble redeeming a code, then get help here. Redeem gift cards and codes to make Xbox purchases and extend your Xbox subscriptions. Codes are 25 characters long, include both numbers and letters, and follow a 5x5 format—five blocks of five characters.
Subscriptions & billing | Xbox Support
Sharing your Xbox Game Pass subscription. Update an Xbox subscription for you or your child. Making sure your Xbox digital subscription is valid for your country or region. Turn on recurring billing for your Xbox subscription. Get help with EA Play for Xbox.
Activate Windows - Microsoft Support
Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.
Codecs in Media Player - Microsoft Support
Codecs allow you to play different formats of audio and video files. Media Player supports a wide variety of codecs. Most are included out of the box; some additional codecs can be installed from the Microsoft Store.
Manage website notifications in Microsoft Edge
Remove or block notifications in Edge settings. In Edge, go to Settings and more in the upper right corner of your browser window. Select Settings > Cookies and site permissions and select Notifications. Under Allow, you will find a list of websites that are currently sending you notifications.
Applies To: Microsoft account dashboard
Windows - Microsoft
激活 Windows 时遇到问题?. 首先,在“获取帮助”应用中尝试激活疑难解答。. 获取帮助可指导你完成解决大多数激活问题的正确步骤。. 打开“获取帮助”. 检查 Windows 激活状态. 首先需要查看 Windows 11 是否已激活并链接到你的 Microsoft 帐户。. 将 Microsoft 帐户链接 ...