Get the steps for changing your home page in Microsoft Edge, Internet Explorer 11, Google Chrome, Firefox, and Safari.

Depending on your organization's settings, you may see a check box that says "Don't ask again for n days" when you perform two-factor verification. If you've selected this option to stop two-factor verification prompts, and then you lose your device or your device is potentially compromised, you should have Microsoft 365 sign you out of all ...

Find out how Microsoft uses activity history data to provide personalized cross-device experiences and to help improve its products and services.

How to use a PivotTable in Excel to calculate, summarize, and analyze your worksheet data to see hidden patterns and trends.

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Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.

Windows doesn't automatically download and install optional updates, but you will be notified when optional updates are available. To get all the available updates for your devices, periodically check Windows Update for all available updates, including optional updates.

See some of the most common upgrade and installation errors for Windows 10 and Windows 11, and what you can do to try to fix them.

使用している Office のバージョンを確認する方法について説明します。 Office アプリの製品名とバージョン番号を見つけます。

Help to fix install errors for Office, such as "can’t install Office", "something went wrong" or situations where install hangs or activation fails.