If you receive a message that's been encrypted or digitally signed and you haven't installed the S/MIME control, you'll see a warning in the message header notifying you that the S/MIME control isn't available. The message will direct you to the S/MIME options page where you can download an S/MIME control installer for the web browser you're using.

Select Save or Save as to download the program. Most antivirus programs like Windows Defender will scan the program for viruses during download.

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Training: Learn how to get up and productive quickly with this Microsoft Teams Quick Start. Sign in to Teams, select Teams and Channels, reply to conversation threads, @mention someone, use emojis and stickers, and ask T-Bot questions.

When you see unexpected charges from Microsoft in a statement from your bank, credit card, or any other payment provider, we want to help you resolve your question as quickly as possible. If you don't recognize a charge on your account, go to the Manage your payments page of your Microsoft account dashboard and select "Investigate".

To count numbers or dates that meet a single condition (such as equal to, greater than, less than, greater than or equal to, or less than or equal to), use the COUNTIF function. To count numbers or dates that fall within a range (such as greater than 9000 and at the same time less than 22500), you can use the COUNTIFS function. Alternately, you can use SUMPRODUCT too.

If it's hard to read the product key on your packaging, use this guide to help you tell the numbers and letters apart: If your Office product key doesn’t work, or has stopped working, you should contact the seller and request a refund.

按任务栏上的“开始”按钮 ，键入“设置”，然后选择“设置”。 在 Windows 10 上，选择“更新和安全”。在 Windows 11 上，选择“Windows 更新”。 在“Windows 更新”页面上，选择“检查更新”以查看是否有适用于设备的任何更新。 在下载更新后，选择“立即安装”以开始安装。

Action. Windows. Mac. Zoom in. Alt + Shift + “+”. Option + Shift + “+”. Zoom out. Alt + Shift + “-”. Option + Shift + “+”. Reset zoom Alt + Shift ...

Note: When you remove and block a member, it only blocks the member from the community.It doesn't block them from one-to-one or group chats in Microsoft Teams (free). To learn about the option to block a contact from adding you to a one-to-one chat, adding you to a new group, calling you in Teams, or adding you to a community, see Block a contact in Microsoft Teams (Free).