Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

使用 vlookup、hlookup 和其他函数（如 index 和 match）根据您输入的值搜索和查找数据。 本文将让您快速回顾 vlookup，然后链接到更多内容。

To check activation status in Windows 11, select the Start button, and then select Settings > System and then select Activation .. Your activation status will be listed next to Activation.. Check activation status in Settings. You'll see one of these activation status messages on the Activation page:

An upgrade differs from an update in that it moves your PC from a previous version of Windows—such as Windows 10—to Windows 11. This FAQ is intended to answer questions about upgrading to Windows 11.

Press the Start button , and then enter store into the search bar.; Choose Microsoft Store from the results to open the app.; Select your account in the top-right corner of the screen, and then select Redeem code or gift cards.; Enter the 25-character code, select Next, and then follow the prompts.

Items restored from Recoverable Items go to the Deleted Items folder. When you recover items from the Recoverable Items folder, they are moved to the Deleted Items folder. After you recover an item, you can find it in your Deleted Items folder and then you can move it to another folder.. Tips and Troubleshooting

Xbox Support offers help for Xbox, Game Pass, and billing questions. Get advice and customer service in the Xbox Support community.

このページでは、IME 機能やキーボードのショートカットなど、Microsoft 日本語 IME の使い方について説明します。

Tip: In Windows 7, you can synchronize your computer clock with an Internet time server to keep the computer clock up to date.To do this, select the date or time in the bottom right-hand corner of your screen, and then select Change date and time settings.Select the Internet Time tab, select Change settings, select Synchronize with an Internet time server, and then select Update now.

Download our Formulas tutorial workbook. We've put together a Get started with Formulas workbook that you can download. If you’re new to Excel, or even if you have some experience with it, you can walk through Excel’s most common formulas in this tour.