Open Device Manager. Right-click the name of the device, then select Uninstall device. Select Uninstall and then restart your PC. Windows will attempt to reinstall the driver. If Windows doesn't find a new driver and reinstalling the driver doesn’t help, contact your PC’s manufacturer for help. Things to try to fix touchpad problems in ...

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Excel 函数（按字母顺序）. Microsoft 365 专属 Excel Microsoft 365 Mac 版专属 Excel Excel 网页版 更多... 单击字母可转到以该字母开头的函数。. 也可以通过按住 Ctrl+F 并键入前几个字母或描述性单词来查找函数。. 要获取有关某个函数的详细信息，请在第一列中单击其名称 ...

Select Start , select the arrow next to All apps, right-click the app, then select More > Pin to taskbar. If the app is already open on the desktop, press and hold (or right click) the app's taskbar icon, and then select Pin to taskbar. Note: To remove a pinned app from the taskbar, right-click the app icon, then select Unpin from taskbar.

Closing recovered files. If you click Close without reviewing all recovered files, you'll see an option to view them again later. The next time you open the application you'll have the option to save or remove those autorecover files. Yes, I want to view these files later (safest option)- Select this option if you are not sure whether you need the data in the recovered versions of the files.

可以从“我的帐户”门户的 “我的登录 ”页查看所有最近的工作或学校帐户登录活动。. 通过复查登录历史记录来查看以下内容，有助于检查是否有异常活动：. 是否有人尝试破解你的密码。. 是否有攻击者成功登录你的帐户以及登录位置。. 攻击者尝试访问的 ...

Windows 11 Windows 10. To open up your webcam or camera, select the Start button, then select All apps, and then select Camera in the list of apps. If you have multiple cameras, you can switch between them by selecting Change Camera at the top right once the Camera app is opened. Open Camera.

若要增加延遲時間，請輸入正數或百分比 (例如 2d) 。. 延隔時間會在兩個具有相依性的工作之間造成延遲。 例如，如果您想要在第一個任務結束和第二個任務開始之間延遲 2 天，請在兩個任務之間 建立完成-開始相依性 ，然後在第二個任務開始之前加上 2 天的延遲時間。

Follow the prompts to install or reinstall the desktop apps. For Microsoft 365 Family or Personal subscriptions: Select Install premium Microsoft 365 apps and follow the prompts to install or reinstall the desktop apps. On the Microsoft 365 subscription tab, select Manage. From here you can: Renew your subscription with a prepaid code or card.

Syntax. LEFT (text, [num_chars]) LEFTB (text, [num_bytes]) The function syntax has the following arguments: Text Required. The text string that contains the characters you want to extract. Num_chars Optional. Specifies the number of characters you want LEFT to extract. Num_chars must be greater than or equal to zero.