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.

Get started with Microsoft Teams (free). Explore your options, find out what’s new, browse help topics, and more.

Discusses how to troubleshoot problems that occur when you try to access or work with files and folders in Windows.

Learn how to open and close Outlook Data Files (.pst) that contain copies, archives, or backups of your Outlook information.

Get the most out of your subscription with expert advice and support from small business advisors. Business Assist for Microsoft 365 is designed for small businesses to give you and your employees around-the-clock access to small business advisors as you grow your business, from onboarding to everyday use.

Hotmail เปลี่ยนชื่อเป็น Outlook.com แล้ว เรียนรู้วิธีการลงชื่อเข้าใช้เพื่อเข้าถึงบัญชีอีเมล Outlook.com, Hotmail, Live หรือ MSN ของคุณ

If you can't remember your account name, use these steps to try to get back into your Microsoft account.

To access your Xbox profile and other Microsoft services, you need to know the email address and password you used to set up your Microsoft account.

O Hotmail é agora Outlook.com. Saiba como iniciar sessão para aceder ao seu Outlook.com, Hotmail, Live, ou conta de e-mail MSN.

If you have multiple accounts in Outlook, when you compose a new email message, Outlook picks the default account as the From account.However, if you want to Reply, Reply All, or Forward a message, Outlook will send your message with the same account the original mail was sent to.For example, Cheryl has two accounts.