View previous versions of a file. If your file is stored in OneDrive or SharePoint in Microsoft 365, you can go back to a previous version of file.

Microsoft support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows, Surface, and more.

可通过不同的方式删除应用和程序，因此如果找不到要查找的应用和程序，可以尝试另一个位置。 请注意，某些应用和程序内置于 Windows 中，无法卸载。

If Windows Update finds an updated driver, it will download and install it, and your printer will automatically use it. If a device driver couldn’t be installed automatically, there may be an optional driver available that your printer can use.

Activate Office 2007. You’ll need to activate Office to keep your Office programs working fully. To activate from Excel, Word, PowerPoint, and Access:

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

Country/region. Microsoft Store sales support. Technical or download support. Egypt +20 2 353 3333. Technical support. South Africa. 0800 167 344. Technical support

On the We need to verify your identity screen, select the security contact method (email address or phone number) where you want us to send your code. Select the option listed to open a dropdown list of all options you have set up on your account. Follow the instructions for completing the contact email address or phone number and select Send code. ...

Microsoft Edge を使用すると、Web を参照するときにパスワードを簡単に保存できます。 デスクトップまたはモバイル デバイスの Edge ブラウザーで新しいパスワードを入力すると、ユーザー名とパスワードを記憶するかどうかを Microsoft Edge から確認するメッセージが表示されます。

Learn how to join a Microsoft Teams meeting if you don't have an account. Join a Teams meeting as a guest in the Windows app or on the web.