安装 Windows 11 的方法 - Microsoft 支持
安装 Windows 11 的其他方法（不推荐）. 使用安装助手进行升级. 我们建议你等到设备可以升级到 Windows 11 后再使用安装助手。. 准备就绪后，可以在 Windows 11 软件下载页 上找到它。. 创建 Windows 11 安装媒体. 在 Windows 11 软件下载页面 上，选择 立即创建工具 ，然后 ...
Use the web version of Outlook like a desktop app
Use Outlook in the new Microsoft Edge. In Microsoft Edge, sign in to your Outlook on the web or Outlook.com account. Select Settings and more at the top of the window. Select Apps > Install this site as an app.
Applies To:
Outlook Web App for Office 365, Outlook Web App for Office 365 Small Business, Outlook on the web, Outlook.com, Outlook on the web for Exchange Server 2019
Can my PC run Windows 11? - Microsoft Support
Windows 11. Your PC can run Windows 11 if it meets minimum (basic) system requirements. For information on basic system requirements and additional requirements for specific features, see Find Windows 11 specs, features, and computer requirements.
Download and install Microsoft 365 Access Runtime
The Microsoft 365 Access Runtime files are available as a free download in either the 32-bit (x86) or 64-bit (x64) versions in all supported languages. Decide which bit version you need. For more information, see Choose between the 64-bit or 32-bit version of Office. In the following drop-down list, select the language you want, and then click ...
Applies To:
Access for Microsoft 365, Access 2021, Office 2021, Access 2019, Office 2019
在 Excel 中将 IF 与 AND、OR 和 NOT 函数配合使用 - Microsoft 支持
AND 和 OR 函数最多可支持 255 个单独条件，但并不建议使用多个条件，因为构建、测试和维护复杂的嵌套公式是非常难的。. NOT 函数仅采用一个条件。. 下面是根据它们的逻辑写出的公式：. 公式. 说明. =IF (AND (A2>0,B2<100),TRUE, FALSE) 如果 A2 (25) 大于 0，并且 B2 (75 ...
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 Web App, Excel for Windows Phone 10
Mouse and keyboard problems in Windows - Microsoft Support
First, try checking your hardware. Try using a different USB port on your PC. If you use a USB hub between the device and the PC, make sure the hub has power. If it’s still not working, try removing the USB hub and plugging the device directly into a USB port on the PC. Make sure that the cables on your device aren't damaged in any way.
LEFT, LEFTB functions - Microsoft Support
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.
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
如何登录到 Hotmail - Microsoft 支持
登录到 Hotmail 或 Outlook.com. 若要登录到 Hotmail，需要提供 Microsoft 帐户用户名和密码。. 提示: 登录时，如果你希望下次直接进入你的邮箱，请在“保持登录?”提示中选择“ 是 ”（对于共享计算机，不建议这样做）。. 或者，选中“不再显示此内容”框，然后选择 ...
Applies To:
Outlook.com
Create and format a hard disk partition - Microsoft Support
Create and format a hard disk partition. To create a partition or volume (the two terms are often used interchangeably) on a hard disk, you must be logged in as an administrator, and there must be either unallocated disk space or free space within an extended partition on the hard disk. If there is no unallocated disk space, you can create some ...
Turn off OneDrive in Windows - Microsoft Support
Turn off OneDrive in Windows. Windows 10. If you don't want to use OneDrive, the easiest solution is to unlink it. Follow the steps in Turn off, disable, or uninstall OneDrive, for how to unlink, hide, and uninstall OneDrive from your PC.