Learn how to utilize Windows Security's virus and threat protection features to scan for threats and review results on your device.

If you’ve forgotten your Microsoft account password, learn how to do a password reset online or by using your Xbox console.

PC に Office 2013 または Office for Mac 2011 をインストールする方法について説明します。

Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows 8.1, Windows 8, Windows 7 or Windows Vista.

Compose a message now, but schedule it to be sent later.

Learn how to recover deleted items, such as email, contacts, calendar appointments, and tasks in Outlook.

Learn how to use Snipping Tool to capture a screenshot, or snip, of any object on your screen, and then annotate, save, or share the image.

Learn how to add user accounts in Windows 10 and Windows 11. With an account, each person has separate files, browser favorites, and a private desktop.

Learn what you can do if you're not receiving account aign-in verification codes.

If Office activation fails, you'll see Unlicensed Product or Non-commercial use / Unlicensed Product in the title bar of your Office apps, and most features of Office are disabled. To restore all features of Office, you'll need to fix the problem that's causing activation to fail.