Troubleshoot Windows Media Player Errors - Microsoft Support
Repair or reset Windows Media Player: If Windows Media Player is not working properly, you can try to repair or reset it to its default settings.To do this, Select Start > Settings > Apps > Installed Apps.. Scroll down and click the three horizontal dots next to Windows Media Player and choose Advanced options, and click the Repair or Reset button. Note that resetting Windows Media Player will ...
How to recover a hacked or compromised Microsoft account
If your account has been hacked, use our sign-in helper tool below to help guide you to the right solutions. The tool will ask for your email address or phone number, and either show appropriate self-help, or offer the chance to talk to an agent.
Change privacy settings in Windows - Microsoft Support
Explore subscription benefits, browse training courses, learn how to secure your device, and more.
在 Outlook 中阻止或取消阻止发件人 - Microsoft 支持
提示: 若要编辑或删除来自于阻止发件人或安全发件人列表中电子邮件地址或域的电子邮件，请在列表中选择项目，然后选择 或 。. 若要清空垃圾邮件文件夹，请在左窗格中选择垃圾电子邮件。在屏幕的顶部，选择全部删除。
Applies To:
New Outlook for Windows
通过共同创作功能同时协作处理 Excel 工作簿 - Microsoft 支持
如果已选择“共享”按钮，其他人会收到一封电子邮件，邀请他们打开文件。他们可以选择链接打开工作簿。 将打开 Web 浏览器，并在 Excel 网页版 中打开工作簿。 如果他们想要使用 Excel 桌面应用进行共同创作，可以选择“在桌面应用中编辑”。但是需要使用支持共同创作的 Excel 应用版本。
Applies To:
Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2016, Excel for iPad, Excel for iPhone, Excel for Android tablets, Excel for Android phones, Excel for Windows Phone 10, Excel Mobile
Import and export Outlook email, contacts, and calendar
Export contacts out of other email services. Export iCloud contacts. Export Gmail contacts – See Gmail help. Export Yahoo contacts – See Yahoo import and export help. Export Thunderbird contacts – See Mozilla support.
Applies To:
Outlook for Microsoft 365, Outlook for Microsoft 365 for Mac, Outlook 2021, Outlook 2021 for Mac, Outlook 2019, Outlook 2019 for Mac, Outlook 2016, Outlook 2013, Outlook.com
使用“自动求和”对数字求和 - Microsoft 支持
如果需要对一列或一行数字求和，请让 Excel 为你计算。 选择要求和的数字旁边的单元格，在“开始”选项卡上选择“自动求和”，按 Enter，即可完成。 选择“自动求和”时，Excel 会自动输入一个公式 (，该公式使用 SUM 函数) 对数字求和。 下面是一个示例。
Applies To:
Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016, Excel for iPad, Excel for iPhone, Excel for Android tablets, Excel for Android phones
Change the power mode for your Windows PC - Microsoft Support
Note: You might not be able to change the power mode when a custom power plan is selected.If you can’t set the power mode in Power & battery settings, open Control Panel, select System and Security > Power Options, then choose a Balanced power plan.
打开或关闭新邮件通知弹出窗口 - Microsoft 支持
桌面通知是当你收到新电子邮件、会议请求或任务请求时出现在桌面上的通知。 默认情况下，桌面通知处于启用状态。
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, New Outlook for Windows
Battery saving tips for Windows - Microsoft Support
Energy saver automatically manages system processes and power usage for an optimal balance of PC performance and longer battery life. Select Start > Settings > System > Power & battery .If you want energy saver to turn on whenever the battery falls below a certain level, select Energy saver to expand options, then next to Turn energy saver on when battery level is at, select the battery level ...