Office または Microsoft 365 を購入したときにプロダクト キーが付属していた場合は、使用している製品に対応する以下の Web サイトのいずれかにプロダクト キーを入力します。

Here's an example of how to use VLOOKUP. =VLOOKUP(B2,C2:E7,3,TRUE) In this example, B2 is the first argument—an element of data that the function needs to work.For VLOOKUP, this first argument is the value that you want to find.

Billing & payments. Your dashboard is also where you can: Buy, renew, or cancel a subscription.

By setting up MFA, you add an extra layer of security to your Microsoft 365 account sign-in. For example, you first enter your password and, when prompted, you also type a dynamically generated verification code provided by an authenticator app or sent to your phone.

Notes: If you don't see Go to Microsoft Store on the Activation page, contact your organization's support person.. If you made a substantial hardware changes to your device (such as replacing the motherboard) and you have a valid product key, try to activate Windows by phone.

Do one of the following: If you've never used Easy Connect, select Use Easy Connect.. If you've used Easy Connect before, select your helper’s contact name. To invite someone who isn't on your contact list, select Invite someone to help you.

After you create your drop-down list, make sure it works the way you want. For example, you might want to check to see if Change the column width and row height to show all your entries.. If the list of entries for your drop-down list is on another worksheet and you want to prevent users from seeing it or making changes, consider hiding and protecting that worksheet.

提示: 登入時，如果您下次想要直接移至信箱，請在 [保持登入?] 提示中選取 [是] (不建議用於共用電腦)。 或者，選取 [不要再顯示這個] 方塊，然後選取 [否]，這樣每次都會提示您輸入密碼。. 如果您無法登入或忘記您的使用者名稱或密碼，請使用我們的 [登入疑難排解員]。

A delivery receipt confirms delivery of your email message to the recipient's mailbox, but not that the recipient has seen it or read it. A read receipt confirms that your message was opened.

Tip: If you're a Microsoft 365 Family or Personal subscriber you get Microsoft Defender, our advanced security software for Windows, Mac, iOS, and Android, as part of your subscription.Learn more at Getting started with Microsoft Defender.