KB4023057: Update Health Tools—Windows Update Service components
Important: If your device is out of support, it is no longer receiving security updates from Microsoft and may become more vulnerable to security risks and viruses.Therefore, we strongly recommend that you update to the latest version of Windows. Each version of Windows is supported for 18 months.
Turn formatting marks on or off - Microsoft Support
Turn specific formatting marks on or off. You can customize which formatting marks are shown in Outlook by opening a new email message. From a new email message, select File > Options > Mail.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016
Windows Media Player 12 - Microsoft 支持
由 media 爱好者 for media 爱好者设计。 Windows Media Player 12（作为 Windows 7、Windows 8.1 和 Windows 10 的一部分提供*）可以播放比以往更多的音乐和视频，包括 Flip Video 和 iTunes 库中不受保护的歌曲！
安装 Windows 7 Service Pack 1 (SP1) - Microsoft 支持
解决安装 Windows SP1 时遇到的问题. 如果你尝试安装 SP1 并看到指示安装未成功的错误消息，这可能是因为用于安装更新的 Windows 维护服务商店出现问题，或者是因为你的防病毒软件阻止安装更新。
配置 Windows Hello - Microsoft 支持
Windows Hello 是登录到 Windows 设备的一种更个性化、更安全的方式。 在 Windows Hello 中，你可以使用面部识别、指纹或 PIN 登录，而不是使用密码。
Error 0xc0ea0001 occurs when launching a game on PC
Press the Windows logo key to open the Start menu, and then enter “cmd” in the search bar.; Right-click Command Prompt, and then select Run as administrator.; Enter the following command line in Command Prompt: sc.exe stop licensemanager Press the Enter key to run the command.; The command prompt will output some text to indicate if the command was processed successfully.
在 Microsoft Edge 中恢复丢失或删除的收藏夹 - Microsoft 支持
现在，可以使用新的收藏夹恢复功能在 Microsoft Edge 中还原丢失或意外删除的收藏夹。 你需要登录到 Microsoft 帐户并 启用同步设置 才能使用收藏夹恢复功能。. 若要在 Microsoft Edge 中还原丢失或删除的收藏夹，请执行以下操作：
Applies To:
Microsoft Edge
激活 Office - Microsoft 支持
如果新电脑上预安装了 Microsoft 365，则必须启动 Microsoft 365 家庭版 试用版或购买 Microsoft 365 才可继续使用 Microsoft 365。 注意: 如果正在 Windows 7 上运行 Microsoft 365(不再受支持，请参阅 Windows 7 终止支持和 Office )，则需要确保已默认启用 TLS 1.2。
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Publisher 2016, Office 2016, Microsoft 365 for home, Office for business, Office.com, Project for Office 365
Open .eml, .msg, and .oft files in Outlook - Microsoft Support
Other ways to open these file types. You can also right-click or double-click the .eml, .msg, or .oft file to open them in new Outlook. Right-click
Applies To:
New Outlook for Windows
Manage background activity for apps in Windows
On the settings page for that app, change the setting for Let this app run in the background.Here’s a summary of each option: Always.The app is always allowed to run in the background—receive info, send notifications, and stay up to date—even when you’re not actively using it.