Press Ctrl + Alt + Delete to open Task Manager.If you don’t see Task Manager after pressing Ctrl + Alt + Delete, press Ctrl + Shift + Esc to open Task Manager.. If Task Manager flickers along with everything else on the screen, a display driver is probably causing the problem.

Add or subtract months from a date with the EDATE function. You can use the EDATE function to quickly add or subtract months from a date.. The EDATE function requires two arguments: the start date and the number of months that you want to add or subtract. To subtract months, enter a negative number as the second argument.

Info for Windows Insiders. If you’re an Insider and the current preview build isn’t working for you, select Start > Settings > System > Recovery .Next to Go back , select Go back.This won’t remove your personal files, but it’ll remove recently installed apps and drivers, and change settings back to their defaults.

了解如何安装 Windows 7 Service Pack 1 (SP1)。 包含有关如何获取下载、要求和其他内容的信息。 备份重要文件 在安装更新之前，最好将重要的文件、照片和视频备份到外部硬盘、U 盘或云端。

You can right-click the contact group and select Delete from the menu or click the group, then select Delete from the Ribbon.. Contacts are not deleted, only the contact list.

如果有一个工作表，其中列包含数据，需要旋转才能按行重新排列它，请使用 “转置” 功能。 使用它，可以快速将数据从列切换到行，反之亦然。 例如，如果数据如下所示，则列标题为“销售区域”，左侧为“季度”：

Windows セキュリティでウイルス対策機能を使って、マルウェア、ウイルス、その他の脅威から Windows PC を保護する方法を説明します。 Windows セキュリティの機能の理解とカスタマイズ Windows のセキュリティは、お客様のデバイスとデータを保護するツールを管理するためのホームです。

Change your password for third-party providers (such as Gmail, Yahoo, Apple, Xfinity, and more)

如果要授予对桌面应用的访问权限，请确保"允许桌面应用访问麦克风"已打开。不能关闭单个应用的麦克风访问。 其他人听不到我说话 请尝试以下解决方案： 如果你的耳机具有“静音”按钮，则确保它未处于活动状态。

Learn about file sharing over a network in Windows. Note: This article focuses on how to share files or folders over a Local Area Network (or LAN), such as connected computers within your home or workplace.If you are trying to find out how to share a file over the Internet, for example with a friend or family member, OneDrive provides easy ways to accomplish this.