Summary. Windows 10, versions 2004, 20H2, 21H1, 21H2, and 22H2 share a common core operating system with an identical set of system files. Therefore, the new features in Windows 10, version 22H2 are included in the latest monthly quality update for Windows 10, version 2004, 20H2, 21H1, and 21H2 but are in an inactive and dormant state.

请从各种 Surface 设备和配件中选择以获得帮助。 选择 Surface 设备 不确定你拥有哪个 Surface 设备？ 了解以下信息

此工具用于收集设备信息，以帮助解决 DirectX 的声音和视频问题。 支持人员可能需要此信息，或者当你寻求帮助时，可以将其发布到论坛上。 在 Windows 中，选择“开始 ”，然后在任务栏上的搜索框中输入 dxdiag。 从结果中选择 dxdiag 。 在工具中，选择“ 保存所有信息...”，以轻松共享格式。

Beginnen Sie mit dem neuen Outlook für Windows, indem Sie Office Insider beitreten. Sie erhalten einen ersten Blick auf die neueste Version von Outlook und können Feedback geben, um sie zu verbessern.

Training: Here's some helpful information and tips to help you make a smooth transition to PowerPoint from Slides.

Quando l'aggiornamento di Windows più recente sarà pronto per il tuo dispositivo, sarà disponibile per il download dalla pagina Windows Update in Impostazioni.

How to create or edit your Outlook signature for email messages. Include your signature, text, images, electronic business card, and logo.

Learn how to recover deleted items, such as email, contacts, calendar appointments, and tasks in Outlook.

Learn how to download, install, and use the PC Health Check app to check your device's compatibility with Windows 11 and get tips to improve its performance.

查找 Windows 7 或 Windows 8.1 的产品密钥 卸载或重新安装 Windows 7 或 Windows 8.1 时，通常需要产品密钥。 通常，如果购买的是实物 Windows 拷贝，产品密钥应该在标签上或者在 Windows 随附包装盒中的卡上。