带有 无效 的产品密钥并收到 MSDN 密钥的用户的说明 文章 阻止激活错误 如果在尝试激活 Office 时看到错误代码 0xC004C060，则你的产品密钥已失效。 如果 Office 产品密钥不起作用，或已停止工作，应与卖家联系，申请退款。

Tips: If you don't see the OneDrive icon, OneDrive might not be running. On a PC, go to Start, type OneDrive in the search box, and then click OneDrive in the search results. You might need to click the Show hidden icons arrow next to the notification area to see the OneDrive icons. On a Mac, use Spotlight to search for OneDrive and open it.

Windows Media Player is available for Windows-based devices. Use this table to find the right version of the Player for your system. (If you've got a Mac, you can download Windows Media Components for QuickTime to play Windows Media files.)

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.

When you check Outlook Desktop for the Teams Meeting Add-in by going to File > Options > Add-ins, then select Go next to COM Add-ins, the Teams Meeting Add-in is missing.

Set the region, device language, and spoken language for your products and services.

Avant de commencer. Assurez-vous que l’appareil sur lequel vous souhaitez installer Windows 11 dispose de la configuration minimale requise.Si votre appareil exécute actuellement Windows 10, nous vous recommandons de vérifier la configuration minimale requise à l’aide de l’Application Contrôle d'intégrité du PC.Nous vous déconseillons d’installer Windows 11 sur un appareil qui ...

To check for any security issues, go to Windows Defender settings, select Show details, and check your security status.

Roaming of the work account's device certificate is not supported. The certificate, issued by "MS-Organization-Access", is stored in the Personal (MY) certificate store of the current user and on the local machine.

Repair programs in Control Panel. Select the Advanced options link under the name of the app (some apps don't have this option). On the page that opens, select Repair if it's available.If it isn't available or doesn't fix the problem, select Reset.