Get a brief explanation about logging on as an administrator and making changes to other user accounts on your computer.

Master the art of Excel formulas with our comprehensive guide. Learn how to perform calculations, manipulate cell contents, and test conditions with ease.

了解在 Windows 中查找 BitLocker 恢复密钥的不同方法，并了解如何在系统上激活 BitLocker。

Learn how to upgrade your existing device to Windows 10 or buy a new PC. Get answers to common questions about upgrading to Windows 10.

了解如何在电脑上安装 Office 2013 或 Office for Mac 2011。

When your camera isn't working in Windows 11, it might be missing drivers after a recent update. It's also possible that your antivirus program is blocking the camera, your privacy settings don't allow camera access for some apps, or there's a problem with the app you want to use.

Use the XLOOKUP function when you need to find things in a table or a range by row. For example, look up the price of an automotive part by the part number, or find an employee name based on their employee ID. With XLOOKUP, you can look in one column for a search term, and return a result from the same row in another column, regardless of which side the return column is on.

Hotmail è ora Outlook.com. Scopri come accedere a Outlook.com per usare l'account di posta elettronica Outlook, Hotmail, Live o MSN.

Saiba como atualizar drivers no Windows usando o Gerenciador de Dispositivos para atualizar ou reinstalar um driver.

Pin, remove, and customize in Quick access. By default, File Explorer opens to Quick Access. You can set a folder to show up in Quick access so it'll be easy to find.