Explore subscription benefits, browse training courses, learn how to secure your device, and more.

If you're not automatically signed in with your work or school account, follow the prompts to enter the email address and password for your work or school account.

PC が TPM 2.0 を実行できるかどうかを確認する方法、または TPM 2.0 を有効にして Windows 11 にアップグレードする方法について説明します。

Tip: If you encounter a problem on your Windows device, pressing the Windows logo key + F takes a screenshot, then opens the Feedback Hub app and automatically uploads the screenshot to the Feedback tab. Follow the on-screen instructions to detail the problem you've encountered.

Need help with an Xbox console, an Xbox game, or Xbox network? Find out how to get in touch with us.

Find out how to submit a request for a refund for a purchase of digital Xbox content.

Turn on Focused Inbox, and move items between Focused and Other folders, Includes instructions for new Outlook, classic Outlook, and the web versions of Outlook.

To change startup behavior, select Start, home, and new tabs, and then select what you want Microsoft Edge to display on startup.

Find out more about Xbox digital codes and gift cards, and how to troubleshoot issues redeeming content.

Suppose you want to find out how many times particular text or a number value occurs in a range of cells, there are several ways to count how often a value occurs.