Summary. The first hours of a newly installed Windows deployment can leave the system vulnerable because of a Microsoft Defender protection gap.

A guide to help you identify and access your Microsoft account. How to check if your email is a Microsoft account? Go to the Microsoft account sign-in page at https://account.microsoft.com and enter your email address.

Microsoft 365 subscribers have access to a growing library of thousands of royalty-free images, icons, illustrations, videos, and more to use in their documents, presentations, workbooks, and emails.

Append records when some of the fields in the data sources don't exist in the destination table For example, suppose that your existing customer table has eleven fields, and the new table that you want to copy from only has nine of those eleven fields.You can use an append query to copy the data from the nine fields that match and leave the other two fields blank.

Sign in using two-step verification or security info; Create app passwords in Security info (preview) Set up a phone call as your verification method

检查你的版本. DirectX 是许多 Windows 游戏都需要的一种多媒体技术套件。 如果你的电脑未安装正确版本的 DirectX（产品包装盒上应标有所需的版本），游戏可能无法正常运行。

This content can help you with your work or school account, which is the account provided to you by your organization (for example, dritan@contoso.com).

Follow these steps to automatically diagnose and repair Windows security problems by turning on UAC, DEP protection, Windows Firewall, and other Windows security options and features.

如果未登录. 若要从历史记录中清除单个搜索，请在" 搜索历史记录"页上，单击要删除的搜索旁边的 x。 若要清除所有搜索历史记录，请在"搜索历史记录 "页面上的"更改历史记录设置"下，单击"全部清除"。 这会删除此设备上的任何搜索历史记录。

The IFS function checks whether one or more conditions are met and returns a value that corresponds to the first TRUE condition. IFS will allow you to include up to 127 pairs of conditions (the test if something is True and the result if something is true). IFS can take the place of multiple nested IF statements.