Important: If you enter more than one product key, you extend the amount of time for that subscription, not increase the number of installs or the amount of online storage you get. You can extend the duration of a Microsoft 365 subscription for a maximum of 5 years.

Office ライセンス認証エラーのトラブル シューティングと修正方法。

You can use any phone number that can receive text messages; it doesn’t need to be associated with your account. We won't use or give out the phone number, and the code sent to it will expire after 10 minutes.

If you’re not signed in. To clear a single search from history, on the Search History page, click the X next to the search you want to delete. To clear all of your search history, on the Search History page, under Change history settings, click Clear all.This deletes any search history on this device.

With External Access for Teams, you can add or invite anyone outside of your Teams org who uses Teams, Teams for personal use, Skype (for consumers), and Skype for Business to a one-to-one chat.

To install Authenticator on your iOS device. Scan the QR code. or download and install Authenticator from the Apple app store. Get the app

To find downloads on your PC: Select File Explorer from the taskbar, or press the Windows logo key + E.

Email encryption. Outlook.com includes encryption and prevent forwarding features that ensure your confidential and personal information you share via email stays encrypted and doesn’t leave Microsoft 365.

Note: If a compatibility issue has been identified on your device that would disrupt your experience using Windows 11, we will temporarily delay your upgrade until the issue is resolved.Compatibility safeguard holds help ensure you have the best experience possible when upgrading and your productivity is not disrupted if critical apps or drivers are not yet compatible.

Join a meeting by phone audio. In Microsoft Teams, the Call me feature gives users a way to join the audio portion of a meeting by phone.This is useful when you're unable to use a computer for audio. Users will be able to hear and speak in the meeting through their mobile or land-line phones.