Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.

Find your product key to activate Windows. A product key is a 25-character code that's used to activate Windows and helps verify that Windows hasn't been used on more PCs than the Microsoft Software License Terms allow.

How to stop website notifications in Microsoft Edge. You can remove or block notifications for individual websites in the following ways: Remove or block notifications in Edge settings

Learn about what effect closing a Microsoft account might have on your other apps and services.

Follow these steps to temporarily turn off Defender antivirus protection in Windows Security. Keep in mind that if you do, your device may be vulnerable to threats.

Hotmail est maintenant Outlook.com. Découvrez comment vous connecter pour accéder à votre compte de messagerie Outlook.com, Hotmail, Live ou MSN.

Learn what you can do if you're not receiving account aign-in verification codes.

Learn how to get Outlook set up to work with Microsoft 365, POP, IMAP, or Microsoft Exchange-based email accounts.

Learn how to turn on device encryption, or standard BitLocker encryption in Windows.

如果不需要的键盘或输入方法仍然存在，则可以从设置中删除单个键盘。 方法如下： 选择“开始 >设置 >时间&语言 >语言&区域 。