How to sign in to Hotmail - Microsoft Support
Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.
Applies To:
Outlook.com
Open and use a shared mailbox in Outlook - Microsoft Support
Learn how to open a shared mailbox in Outlook. Shared mailboxes let a group of users view and send email, and share a calender, and open a contact list from a common mailbox.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Office 365 Small Business, Microsoft 365 admin, Outlook on the web, New Outlook for Windows
Set up email in the Mail app - Microsoft Support
This article tells you how to add email accounts to the Mail and Calendar apps so you can start sending and receiving email and creating and managing events.
Applies To:
Mail for Windows 10, Outlook Mail for Windows 10
How to set up and test microphones in Windows - Microsoft Support
Get tips for how to set up and test microphones in Windows.
在 Excel 中将 IF 与 AND、OR 和 NOT 函数配合使用 - Microsoft 支持
如何将 IF 函数 (与 Excel 中) AND、OR 和 NOT 函数结合使用，以在给定值之间进行逻辑比较。
Applies To:
Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016, Excel Web App, Excel for Windows Phone 10
Change screen brightness in Windows - Microsoft Support
Get steps for how to change screen brightness in Windows.
Add pictures or attach files to email messages in Outlook
It's easy to attach pictures, files, and other items to your Outlook messages. Outlook keeps track of the documents you’ve recently worked on, whether they're stored on your computer or saved in OneDrive (cloud only).
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook on the web, Outlook.com, New Outlook for Windows
Reset or recover your lost Microsoft account password
If you’ve forgotten your Microsoft account password, learn how to do a password reset online or by using your Xbox console.
Troubleshoot screen flickering in Windows - Microsoft Support
Find out how to stop your screen from flickering after the upgrade to Windows 10.
App permissions - Microsoft Support
Learn how to locate and manage your app permissions on Windows devices. Some apps or games need specific permissions to work properly.