To get support in Outlook.com, click here or select Help on the menu bar and enter your query. If the self-help doesn't solve your problem, scroll down to Still need help? and select Yes.. To contact us in Outlook.com, you'll need to sign in.

Learn how to remove malware from your PC. Use Microsoft Defender Antivirus in Windows 10 or Windows 11 to scan your PC for malware, viruses, or other threats.

Note: If it’s been fewer than 10 days since you upgraded to Windows 10, your previous version of Windows will be listed as a system file you can delete.If you need to free up drive space, you can delete it, but keep in mind that you'll be deleting your Windows.old folder, which contains files that give you the option to go back to your previous version of Windows.

Windows 在检测到可能未经授权的访问数据尝试时，需要 BitLocker 恢复密钥。 此额外步骤是一种安全预防措施，旨在确保数据的安全。 如果在 BitLocker 无法与可能的攻击区分开来的硬件、固件或软件中进行更改，也可能会发生这种情况。

Outlook.com でサポートを受けるには、ここ をクリックするか、メニュー バーの [ヘルプ] を選択してクエリを入力します。 セルフヘルプで問題が解決しない場合は、[さらにヘルプが必要ですか?] まで下にスクロールし、[はい] を選択します。 Outlook.com でお問い合わせいただくには、サインイン ...

Learn how to sign in or out of your Outlook.com, Hotmail, Live, or MSN email account with Microsoft Support's step-by-step guide.

视违规严重程度，可临时或永久性禁用其他 Xbox 设备（包括 Xbox One、Xbox Series X|S 或 Windows 设备）。 永久性 Xbox 设备禁用会影响设备访问任何联机和服务功能。 Xbox 设备暂停（其中某些特权和功能暂时撤销）将在观察到暂停时间后解除。

若要使工作表的某一区域在滚动到工作表的另一区域时仍保持可见，请转到“视图”选项卡，在此选项卡中，可以“冻结窗格”，将特定的行和列锁定到位，也可以“拆分”窗格，创建同一工作表的单独窗口。

Troubleshoot problems with Bluetooth accessories. If you can turn on Bluetooth but having problems pairing or using a Bluetooth accessory, try the following steps to try to fix common problems with Bluetooth accessories.

Learn how to run a disk cleanup in Windows including deleting temporary and system files to free up disk space.