Argument name. Description. Sum_range (required). The range of cells to sum. Criteria_range1 (required). The range that is tested using Criteria1.. Criteria_range1 and Criteria1 set up a search pair whereby a range is searched for specific criteria. Once items in the range are found, their corresponding values in Sum_range are added.. Criteria1 (required)

Office 小型企业版、Office 家庭和学生版以及 Office 专业版可在单台计算机上安装。 如果尝试在另一台（自己所有的或其他人所有的）计算机，或者硬件更改后的同一台计算机上安装和激活这些版本的 Office，则可能会看到一条错误消息，提示你已达到最大激活数量。

When you first sign into Microsoft Defender on Android, we'll walk you through a few easy steps that start with setting up web protection.During this process, we'll ask you to give Defender permission to do two things: run in the background and use the Accessibility Service.

After you turn on two-step verification or set up the Authenticator app, you may run into issues if you use older devices (like Xbox 360 or a mail-sending security camera) that don't support two-step verification. For those devices, you can sign in with an app password instead. An app password is a long, randomly generated password that you provide only once instead of your regular password ...

The Microsoft Mouse and Keyboard Center is an app that helps you make the most out of your Microsoft keyboard and mouse. Mouse and Keyboard Center helps you personalize and customize how you work on your PC.

The easiest way to get language packs for Windows 8.1 and Windows RT is to download and install them using the Language Control Panel. Download and install additional languages to view menus, dialog boxes, and other user interface items in your preferred language.

To do this. Press. Move to the Tell Me or Search field on the Ribbon to search for assistance or Help content.. Alt+Q, then enter the search term. Open the File page to use Backstage view.. Alt+F. Open the Home tab to use common formatting commands, paragraph styles, and the Find tool.. Alt+H. Open the Insert tab to insert tables, pictures and shapes, headers, or text boxes.

Note: The Automatically save passwords setting has been retired with Microsoft Edge version 124 and later. Instead, Edge will offer to save your passwords each time you enter new credentials in the Edge browser. All your previously autosaved passwords will continue to be available for a seamless login.

When prompted, enter the product key. You can find the product key on the sticker on the CD case or other packaging. If you need help, see Find your Product Key for Office 2007.

How to open the Camera app in Windows. 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