To add another account to OneDrive on your computer. If you already have a personal OneDrive account set up, you can only add work or school accounts.

開始する前に. Windows 11 をインストールするデバイスが、最小システム要件 を満たしていることを確認します。 デバイスで Windows 10 を実行中の場合、Windows PC 正常性チェック アプリ を使用して、最小システム要件を確認することをお勧めします。 要件を満たしていないデバイスに Windows 11 を ...

In the search box on the taskbar, type device manager, then select Device Manager from the menu.

The tool may make one or more changes to the installed version of .NET Framework. For example, it may correct the state of Windows Installer on the computer, reset the discretionary access control lists (DACLs) on certain folders, or resolve issues that are related to an invalid or corrupted update registration.

Use date and time functions to create formulas that return serial numbers, display a specific date or time, or that calculate the difference between dates or times.

If you can't sign into your Microsoft account, most issues can be identified by our sign-in helper tool. The tool will ask you to enter the email address or mobile phone number you're trying to sign in with and check the details you provide.

Look in the Surface app. The easiest way to find which Surface model you have is to use the Surface app. It shows the model name of your Surface device and each Surface accessory.

Swipe in from the right edge of the screen, tap Settings, and then tap Change PC settings. (If you're using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, click Settings, and then click Change PC settings.)

Windows Security provides built-in security options to help protect your device from malicious software attacks. To access the features described below, tap the Windows Start button, type windows security, select it from the results, and then select Device security.

Set backgrounds for desktops. You can also choose different backgrounds for each desktop if you're using a picture. If you're using a solid color or a slideshow, all your backgrounds will be the same.