Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

Choose Design to see tools for adding various elements to your equation. You can add or change the following elements to your equation. In the Symbols group, you’ll find math related symbols. To see all the symbols, click the More button. To see other sets of symbols, click the arrow in the upper right corner of the gallery.

Need help with an Xbox console, an Xbox game, or Xbox network? Find out how to get in touch with us.

Sur l’appareil sur lequel vous souhaitez modifier la clé, dans n’importe quelle application Office, sélectionnez le menu Fichier, puis sélectionnezCompte vers le bas du menu.. Sous Informations sur le produit, sélectionnez le bouton Changer de licence.. S’il n’y a pas de bouton Changer de licence, vous devrez peut-être installer les mises à jour Office.

Clean up your inbox and keep your email organized with automatic filtering and sorting, and by using tools on the command bar like Sweep, Archive, and Move to.

Open Quick Assist. Select Help someone, then share the 6-digit code with the person you're helping.. After they've entered the code, wait for the person you're helping to allow the connection and share their screen. When you’re connected and helping someone, you can use different tools in Quick Assist if you like, such as a laser pointer, annotation, chat for typing messages, and more.

当无法安装或删除程序时，程序安装和卸载故障排除程序可自动修复问题。 它同时修复损坏的注册表项。 首先，你需要下载 ...

Malware is malicious software and it comes in a lot of different varieties.Viruses, ransomware, spyware, and more are all types of malware. Microsoft Defender has powerful built-in features that can help protect your device against malware.

Microsoft will never proactively reach out to you to provide unsolicited PC or technical support. If you receive a phone call claiming to be from Microsoft, or see a pop-up window on your PC with a fake warning message and a phone number to call and get your "issue" fixed, it's better to be safe and not click any links or provide any personal information.

Contatta il Supporto tecnico Microsoft. Trova soluzioni a problemi comuni, oppure ottieni assistenza da un operatore del supporto.