コンピューター上のファイルが見つからなくなった場合、または誤ってファイルを変更または削除してしまった場合でも、バックアップから復元 (Windows バックアップを使用している場合) したり、以前のバージョンから復元を試みることができます。以前のバージョンとは、復元ポイントの一部 ...

Find your product key to activate Windows. A product key is a 25-character code that's used to activate Windows and helps verify that Windows hasn't been used on more PCs than the Microsoft Software License Terms allow.

这些说明能帮助解决激活问题，方法是从 Mac 中删除所有 Office 许可证文件。 例如，如果以前安装了一次性购买的 Office for Mac，并且已转换到 Microsoft 365，你可能不会看到订阅功能，因为你的 Office 副本仍然使用的是旧许可证。

Note: Some cameras won't appear in the Camera settings page.These include infrared (IR) cameras used for Windows Hello Face authentication, cameras using DirectShow technology (like many apps provided by DSLR or action camera manufacturers so their devices can be used as webcams), and proprietary cameras that aren't managed by Windows—such as industrial cameras and many networked cameras.

In the Windows emoji picker, you can either scroll through the list, use the category icons at the top or bottom of the emoji picker, or type a keyword to search for the emoji you want.

管理者の数を減らし、日常的なアクティビティに標準ユーザー アカウントを使用する方が安全です。 設定アプリを使用して、ユーザーを管理者にするか、管理者を標準ユーザーに戻すことができます。

On the General tab, under Home page, enter the URL of the site you want to set as a homepage.You can add more than one URL. Or, to add the site you're currently viewing, select Use current.If you add more than one URL, put each URL on its own line.

Tips: While signing in, select Yes at the "Stay signed in?" prompt if you want to go straight to your mailbox next time (not recommended for shared computers). Alternatively, check the "Don't show this again" box and select No to be prompted for your password each time.. If you can't sign in, or have forgotten your username or password, use our sign-in troubleshooter.

Learn how to open and run DxDiag.exe on Windows to collect device information and troubleshoot DirectX sound and video issues.

Cookies are small pieces of data stored on your device by websites you visit. They serve various purposes, such as remembering login credentials, site preferences, and tracking user behavior.