Safe mode starts Windows in a basic state, using a limited set of files and drivers. If a problem doesn't happen in safe mode, this means that default settings and basic device drivers aren't causing the issue. Observing Windows in safe mode enables you to narrow down the source of a problem, and can help you troubleshoot problems on your PC.

新しい Microsoft アカウントを作成して Microsoft サービスを使用する方法について説明します。

Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.

Check your network connection status in Windows. Windows 11 lets you quickly check your network connection status. Select the Start button, then type settings.Select Settings > Network & internet.The status of your network connection will appear at the top.

Learn how to use the taskbar features in Windows. Hide the taskbar, pin an app, change the location, and more with taskbar settings.

Try these solutions if you can't sign in to your Outlook.com, Hotmail, Live, or MSN email account, or you're not sure how to sign in or sign out.

If you're trying to add your Outlook.com account to Outlook or another mail app, you might need the POP, IMAP, or SMTP settings. You can find them below or by viewing them in your Outlook.com settings.. Outlook and Outlook.com may be able to detect your account's mailbox settings automatically, but for other non-Microsoft accounts, you may need to contact your email provider for their settings.

Show the Developer tab. If the developer tab isn't displayed in the ribbon, see Show the Developer tab.. Open a template or use a blank document. To create a form in Word that others can fill out, start with a template or document and add content controls.

忘れた場合や紛失した場合に Windows パスワードを変更またはリセットする方法について説明します。

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