Learn how to reset or move OneDrive by unlinking and re-linking your PC.

Find out how to stop your screen from flickering after the upgrade to Windows 10.

See what's new in recent Windows 10 and Windows 11 updates, including a chat from the taskbar, widgets, snap groups, and more.

Office for Mac applications automatically check for potential spelling and grammatical errors as you type. If you’d rather wait to check spelling and grammar until you're done writing, you can turn off automatic checking, or you can check spelling and grammar all at once.

Access, download, or run the Surface app and the Surface Diagnostic Toolkit to help find and solve Surface problems.

If you get an email about unusual activity on your Microsoft account, or if you’re worried that someone else might have used your account, go to the Recent activity page.You’ll see when your Microsoft account was signed in during the last 30 days, along with any device or app-specific info.

Use Power Query in Excel to import data into Excel from a wide variety of popular data sources, including CSV, XML, JSON, PDF, SharePoint, SQL, and more.

Learn how to recover a hacked or compromised account, what to do next, and how to prevent your account from being compromised in the future.

In Windows, having a camera and microphone as part of your device lets you make Teams video calls, take pictures, record videos, and more. Many apps and services request and use the camera or microphone, and Windows settings give you control over which apps can use your camera or microphone.

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。